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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To be weirded out by my future SIL?

118 replies

WatermelonSponge · 03/09/2025 05:58

Hey everyone, name change as my other info put together with this would be quite outing.
So,
I’m going to give as much information as possible so apologies as this is a long one.

I’m a little bit concerned about my future SILs obsession with my fiancé (for ease I’ll just call him DH).
My DH is the eldest sibling and SIL the youngest, they didn’t have the most loving parents growing up and my DH had a lot placed on him as the oldest and was often beaten/belted/punished in place of his younger siblings, which he took without protest to protect them. His mother ended up leaving his dad and moving in with another unsavoury man and essentially emptied the whole house and left the kids behind. It had a huge emotional toll on all of the children.

My DH being the eldest remembers it very clearly being around 12/13 at the time, his brother was maybe 8 and his sister around 4.
DH is a really wonderful man, but the abuse and abandonment took its toll and he had a very wild time between his teenage years and mid-20s, drinking, taking drugs and getting into trouble with the police.
Despite this he always looked out for his younger siblings and was there for them, albeit not very sober or in a position to do much for them.

He moved out, or more like was kicked out, somewhere around age 16 and lived with friends and their families, passing girlfriends and on campus when he went into HE, so managed to find somewhere to lay his head but it was turbulent and he’s not really had a true home since before his mum left. In the same vein he’s lived with his siblings since around this age either and during this time contact was sparodic but he always tried his best to be there. His sister became pregnant as a teen and her dad kicked her out, DH lived very far away but stayed in touch via text but didn’t meet his niece until she was around 3/4.

After a big blow out with his dad in his mid-20s which led to a short arrest/stay in a county jail he decided he couldn’t continue like he was and instead completely became a bit of a recluse. His dad and him ‘made up’ and he moved in with him and they just co-existed with DH being an emotional punching bag.

Anyway, that’s just a bit of background.

Fast-forward a few years and he and I met in a supermarket whilst I was on holiday in his country, we hit it off right away and he asked for my number. We went on a date whilst I was there but I was going back home shortly after we met but honestly we both knew it was special so we agreed to keep in touch.
We were LD for a year or two and between us we decided him moving here would be the better option. His sister had come to visit him and his dad for the first time in a few years with her youngest child so he thought it was a good idea to tell the family our plans. Well, he told his dad and he was all for it and said it’d be good for him, but when he told his siblings his sister was NOT happy in the slightest.
She left the room and starting drinking then contacted me and advised me this was a terrible idea, he wasn’t over an ex gf, he would ruin my life as he was bad news, he wouldn’t ever love me right and I deserved better etc etc whilst crying in the car. She told me they were all taking bets on how long it’d take him to mess up his ‘new life’ and she bet within the first 24hrs of landing here.

I was a bit bewildered, I’d never spoken to her before this as she lived with their mum about 6 hours away from him with her children, and apart from her texting every now and again or visiting their dads house he didn’t have much contact with her anymore. He said the limited contact was as she liked to dredge up the past whenever they got together and she would just try to rehash all the pain of the past which he remembers much more vividly. He also mentioned that she just liked to talk about herself and her trauma for days and days and stop him sleeping so she can ‘trauma dump’.

I explained to DH what had happened and it turned into a big argument between them with her calling me all sorts of names and him ignoring her for the rest of her visit. He apologised and told me if I had any reservations then he understood, but he loved me and we could extend the time frame if I needed longer to decide. I reminded him I too had a very dysfunctional family so I understood difficult dynamics and we should go ahead as we’d planned.

4 months later he came to the U.K as a test stay to see if he’d be able to settle here, everything went really well and he loved being here with me and we decided to make the move more official.
In his 6 months here he had fallen out with his father who he realised was still very abusive, but needed to return to his home country to apply for a spousal visa and didn’t have a place to stay, so he asked his mum and sister if they would put him up whilst he applied.
They were happy to have him and said yes, so he went back and with the expedition we had his acceptance answer within a week which was brilliant and we felt so lucky.
He FaceTimed me to give me the good news and we started saying how excited we were when his sister started throwing a wobbly in the background complaining how I was stealing her big brother and I was taking time away from her at that moment and she needed this time with him alone.

I brushed it off and explained I’d talk to him when he went to bed and he said he loved me and he couldn’t wait to be home - that further set her off and she said that he WAS home. I gave him a funny look which he shared and repeated what he said and hung up.
He called me later that night and his sister was there, despite earlier I was very nice and tried to ask her lots of questions about her and ‘bond’ with her which she took to, but whenever he and I would talk about life here she would get upset and try and drape herself on him and talk about how much she loves and misses him and doesn’t want him to leave. That she is his keeper and he’s always going to be her favourite person, even above her children, and whilst he was visibly uncomfortable he just put up with it. I smiled, though weirded out a smidge, and said it was lovely they were close and I wish I’d had that sort of relationship with my family.
She then spent until 5am in his bedroom before he asked her to leave so he could sleep as he was confirming his flight back the next morning for 2 days time so he could be back for Christmas with me. Cue more dramatics and a full-on breakdown (despite her knowing this was always the plan regardless of Visa application status as a visa isn’t needed to simply visit from his country to the UK) and she went outside to smoke to ‘calm herself’. He followed her out and told me he’d call me back. That took about 4 hours.

When he called back she was passed out in his bed so he was on the couch about to sleep but wanted to talk to me first and apologise for how she acted. He explained that he didn’t know what her issue was, but that he’d told her off and he’d be home soon so this would be less of an issue. I said it was ok and I loved him and he needed to sleep.
After that every time he was on his phone updating me or simply wanting to talk she would show her distaste and come up with something he needed to do right there and then, even his mum seemed a little embarrassed. When he got past airport security I selfishly did a sigh of relief that dealing with that was finally over, I was apparently wrong.

Over the next two years she would switch between sweetness and light with us to out and out spiteful. Going between calling up DH and refusing to talk if I was around which lead to him hanging up which then had her sending me a bizarre barrage of text messages on every platform I had telling me I had stolen her best friend/favourite person/the best man she knows, to then changing her tune and trying to flatter me and say how much I’ve changed him for the better and how grateful she was that we found one another?!

In the end I told DH I needed to block her for my sanity as she was being truly bonkers, he agreed it was for the best and when she brought it up at the next phone call she went ballistic when he confirmed why. He then told her he didn’t want to deal with her behaviour and he wouldn’t be talking to her again until she got some help, he blocked her and we got on with life.

We got engaged and then I fell pregnant quickly, we were over the moon! He was so excited to be a dad that he told his family right away and unblocked his sister to share the good news too despite my reservations.

She texted and congratulated us and told us she was going to renew her passport and visit for when the baby arrived. I was nice and said that’d be lovely and we’d let her know when the time was right, DH said she could but maybe in time not right away as we’d be finding our feet as new parents. She looked upset but held her tongue and said that was fine.
After this I unblocked her too hoping that the good news would bring us closer and things could be calmer. Instead it became all about how much she’d missed her brother and how brilliant he was and how lucky I am to have a man like him and when she was here all the things she wanted to do with him like go out drinking and find herself a British man so she could stay forever.
I agreed he was wonderful but he would have a newborn so I doubted going out getting hammered was going to happen and that he had changed a lot since they were younger and her tales of him weren’t quite who he was now, she took offence to this and told me to her he would always be hers first and her best friend. I just ignored her message and changed the subject.

DH has been busy at work the last few months and we’ve been saving harder for or baby’s arrival so he’s not really spoken to anybody back home, and a few days ago I woke up to about 8 very long, very angry messages from his sister.
I didn’t even read them, I just passed the phone to DH who then rolled his eyes and told me to ignore them.
When she saw I’d read them and not replied she became angry and carried on sending them, to the point I had to respond as she was spiralling, talking about going and sleeping in his bed in his old bedroom and crying whilst typing her messages. I ansked her to take it up with her brother not me and she again asked why he wouldn’t talk to her and insinuated that I was stopping him or that he was dead and I was hiding his death from her and others.
I was absolutely outraged, I told DH what she’d said and he texted her too annoyed to speak nicely and asked her to stop and he’d call in a few days time, but she just went on and on and then sent him some very long very weirdly OTT message about how she was a mini version of him and she was proud to be and it was her and him forever.
She then said she needed to cut him out of her life and told him not to call her, he just sent a simple ok and left it at that. I’ve now re-blocked her on all platforms as I really don’t need this stress with me being due to give birth in a few month, but I don’t even know what to think of all of this.

As a child from an abusive household I can absolutely appreciate that their childhood had a very profound impact on their lives, especially hers being to young and the only girl who was then thrown out as a teenager. However her behaviour is totally out there and I don’t understand it at all.

DH pulls her up on the truly awful stuff but brushes over the more mid-level aggression she likes to dish out to people around her as he knows she had it rough, I guess it’s him protecting her as he’s always done, but honestly I’m a little creeped out by her behaviour. I’m not sure what her obsession is with him, I guess he is probably the only positive male presence she’s had in her life? Still though, it all seems very OTT when she’s saying it’s crushing her to have him not talk to her all the time and be so far away when they really didn’t speak much or ever see each other when they lived in the same country but now he’s doing well in life and is happy she’s gone a bit mad.

I guess my AIBU is should I be this weirded out by her behaviour and what the actual F should I/we do about it?! It’s gotten to the point I would really rather her not be in our life at all, but I’d never ask that of DH. He’s said he doesn’t want to talk to her as she’s lost the plot, but I find myself defending her and trying to act as if she isn’t batshit crazy because if she ever becomes more stable then to her I’ll always be the one who stopped them talking despite it being of his own free will.

Again, apologies for the long first post, I’m just lay here with pregnancy insomnia with a lot on my mind and wondering if I’m over or under reacting.

OP posts:
Jauntyangles · 03/09/2025 05:59

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Stowawaysue · 03/09/2025 06:00

Bloody hell op

can you condense that

what a load of waffle

Stowawaysue · 03/09/2025 06:01

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WatermelonSponge · 03/09/2025 06:09

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Yeah not AI lol

OP posts:
WatermelonSponge · 03/09/2025 06:11

Stowawaysue · 03/09/2025 06:00

Bloody hell op

can you condense that

what a load of waffle

I mean yes I could, but then every little thing I say I’d be accused of ‘dripfeeding’ so whilst I’m lay here doing nothing I thought I’d write it out. Read it or don’t I guess?

OP posts:
Stowawaysue · 03/09/2025 06:19

WatermelonSponge · 03/09/2025 06:11

I mean yes I could, but then every little thing I say I’d be accused of ‘dripfeeding’ so whilst I’m lay here doing nothing I thought I’d write it out. Read it or don’t I guess?

Or don’t

WatermelonSponge · 03/09/2025 06:21

Stowawaysue · 03/09/2025 06:19

Or don’t

Goodo, off you pop. Enjoy your coffee!

OP posts:
Stowawaysue · 03/09/2025 06:22

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WatermelonSponge · 03/09/2025 06:24

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Ok? I’m here for advice from someone who may relate, why are you all that fussed if I get any advice or not, I’m so sorry my wall of text offended you.

OP posts:
SunshineAndFizz · 03/09/2025 06:27

She clearly needs help from a traumatic past. She has a strange attachment to her brother, probably due to him looking after them and all other parent figures failing her at critical times in her childhood.

I’d offer to pay for some therapy for her, if you can afford it obviously.

TheFatCatSatOnTheMat · 03/09/2025 06:27

I get that you don’t want to drip feed OP but drowning us in unnecessary information isn’t helpful either.

Help people help you by editing the above.

NameChange23456790 · 03/09/2025 06:27

I couldn’t be arsed with all the drama, ignore and get on with your own lives. Good luck!

SomewhatAnnoyed · 03/09/2025 06:28

If this is real this woman poses a serious risk to you all. Do not allow her to stay with you, don’t even give her your address. She is unhinged and obsessed and will not stop her behaviour until your relationship
is over, by whatever means necessary. She obviously does not like you (understatement) and I’m pretty sure this would translate to your children, unless she goes the other way and obsessively dotes on them bc they are his. She would probably expect some bizarre visiting rights bc they are related and she should have been their mother. Expect legal notifications.

The whole thing is pretty sick and she needs extensive help and a restraining order until she gets it.

I don’t want to upset you while you are expecting but this is really serious, as you must know. She is a threat. You being understanding and nice has not, and will not make her behaviour or the way she sees you any better. Trust me. You have taken away her only ‘safe’ person, she will never forgive you.

My advice is to cut all contact and never see her or the rest of his family again. I still can’t quite believe he has anything to do with any of them given the child abuse he and his siblings suffered at the hands of both his parents - his mother left them with a violent abuser so she’s pretty disgusting herself and his dad chucked his pregnant sister out the house when she was a vulnerable teenager. The only exception seems to be his brother who you haven’t spoken about.

Leave that toxic crap in the past and don’t go back - and don’t let them visit you, please!

MC846 · 03/09/2025 06:28

No-one is going to make it through that. I made it to the sisters phone call 🤷‍♀️

Stowawaysue · 03/09/2025 06:28

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WatermelonSponge · 03/09/2025 06:30

SunshineAndFizz · 03/09/2025 06:27

She clearly needs help from a traumatic past. She has a strange attachment to her brother, probably due to him looking after them and all other parent figures failing her at critical times in her childhood.

I’d offer to pay for some therapy for her, if you can afford it obviously.

Thanks for the reply.

She did say in one of her recent texts that she was seeing a therapist who said to cut him out of her life, so I’m hoping she is getting some help, but then again it may have been a way to just hurt his feelings, I’m not sure?
We’re sadly not in a position to pay for therapy for her with the baby due in a few months but maybe DH can broach this with his mum?

OP posts:
ThejoyofNC · 03/09/2025 06:34

Bloody hell I need to start checking the length of posts before I start reading.

She's mental. Stop unblocking her. You don't even live in the same country so no contact couldn't be much easier.

SunshineAndFizz · 03/09/2025 06:36

There’s an episode of Sex in the City where Carrie gets told she picks the wrong men (then complains about them when things go wrong). The signs were there loud and clear that you’d have family drama with this man, surely you can’t be surprised?

Honestly I could not be bothered with it all, it would have put me off before he even moved here. I think your only option now is to avoid having anything to do with the family. Block and ignore.

skilpadde · 03/09/2025 06:36

Meh, I don’t think it’s worth too much headspace.

She lives in a different country. Your DH is on the same page as you. If he were similarly enmeshed while gaslighting you about it, that’d be worrying, but that’s not the case here.

Keep her blocked. Forever. Keep her at arms length from you. She will at no point miraculously change and become a stable person or your perfect SIL. Leave all communications and updates with his family to your DH. No exceptions.

Then you get on with your life as a new small family.

WatermelonSponge · 03/09/2025 06:40

SomewhatAnnoyed · 03/09/2025 06:28

If this is real this woman poses a serious risk to you all. Do not allow her to stay with you, don’t even give her your address. She is unhinged and obsessed and will not stop her behaviour until your relationship
is over, by whatever means necessary. She obviously does not like you (understatement) and I’m pretty sure this would translate to your children, unless she goes the other way and obsessively dotes on them bc they are his. She would probably expect some bizarre visiting rights bc they are related and she should have been their mother. Expect legal notifications.

The whole thing is pretty sick and she needs extensive help and a restraining order until she gets it.

I don’t want to upset you while you are expecting but this is really serious, as you must know. She is a threat. You being understanding and nice has not, and will not make her behaviour or the way she sees you any better. Trust me. You have taken away her only ‘safe’ person, she will never forgive you.

My advice is to cut all contact and never see her or the rest of his family again. I still can’t quite believe he has anything to do with any of them given the child abuse he and his siblings suffered at the hands of both his parents - his mother left them with a violent abuser so she’s pretty disgusting herself and his dad chucked his pregnant sister out the house when she was a vulnerable teenager. The only exception seems to be his brother who you haven’t spoken about.

Leave that toxic crap in the past and don’t go back - and don’t let them visit you, please!

Thanks for the reply and yes it’s sadly real.

In an ideal world I’d absolutely say this is the way to go, especially with his parents who I agree are both as bad as each other, but I don’t want to almost demand that of him after he’d moved to be with me and start a life here. I think the longer he’s away from there the more he sees it anyway.

I know deep down she’s not safe to be around and is unhinged and I don’t really think she would visit either as she doesn’t like air travel but then I also think to see DH maybe she would? I feel quite sorry for her in a way, but then it’s also not my fault and I really have been nothing other than nice, so I also feel absolutely furious about how she’s acting towards me (and so is DH which is why he needed to cool off before he called her).

Also I didn’t mention his brother as it seemed long enough and based to the PA replies from some on here I was right. 😂 His brother hasn’t ever been in a good place and tries not to have too much to do with them.

OP posts:
ThankULord · 03/09/2025 06:40

OP, this is a tough one. No matter what you do, you will have some guilt or worry. Guilt about cutting her off, worry about what next is she going to do. Guilt and worry about how whatever you do will be perceived by your DH.

I wouldn't encourage her thinking she will be visiting with you soon. She doesn't sound safe to have access to your baby (children - when you have them) especially unsupervised.

If she does come to the UK, I wouldn't let her stay in your house for the duration of her visit.
She should stay blocked on all your platforms. She can communicate via her brother though i think he needs to massively pull back too.

Saponarium · 03/09/2025 06:41

I read it. It sounds like she has some serious psychological issues, maybe a personality disorder. I've only known one or two people like this in my life and luckily I was able to cut them out because it almost wrecked me, mentally and emotionally. She needs help. Could your brother suggest to her (gently) that she sees a psychologist? What about his mother, can she intervene and speak to the sister? Brother needs to make clear his boundaries to himself & sister, and to communicate those boundaries, in order to protect you and his new family.

WatermelonSponge · 03/09/2025 06:42

ThejoyofNC · 03/09/2025 06:34

Bloody hell I need to start checking the length of posts before I start reading.

She's mental. Stop unblocking her. You don't even live in the same country so no contact couldn't be much easier.

Yes I think for myself I will, I’ll let DH sort out what to do himself but will just avoid her and ask him to refuse her visits. I don’t know how that will pan out but there are a good 4000 miles between us so I doubt it’ll be too bad.

OP posts:
WatermelonSponge · 03/09/2025 06:46

ThankULord · 03/09/2025 06:40

OP, this is a tough one. No matter what you do, you will have some guilt or worry. Guilt about cutting her off, worry about what next is she going to do. Guilt and worry about how whatever you do will be perceived by your DH.

I wouldn't encourage her thinking she will be visiting with you soon. She doesn't sound safe to have access to your baby (children - when you have them) especially unsupervised.

If she does come to the UK, I wouldn't let her stay in your house for the duration of her visit.
She should stay blocked on all your platforms. She can communicate via her brother though i think he needs to massively pull back too.

Thank you for the input, yes the initial visit won’t be unless I’m around for the whole time so during maternity leave is likely best but not for a while after they’re born.

He was just so excited to share good news that he didn’t even think about any consequences of what would be said/done. Our home is a little small for her to stay in anyway so she’d need a hotel air BnB, but her mum or dad may come with her anyway. It’s all very messy and complicated on their end and I’m NC with my own family so really didn’t expect this to be honest.

OP posts:
rainbowstardrops · 03/09/2025 06:51

Blimey, I hadn’t realised that would have been so long!
I’m guessing the sister is hurting that the person she’s always looked up to, has found someone (you) and cleared off to another country? She does sound as if she needs a lot of therapy because she’s clearly been screwed up by her childhood.