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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To cut contact with my heavily pregnant sister?

122 replies

QuickScroller · 03/01/2025 15:27

My DS has always been a challenging person, and it’s only gotten worse over the years. Growing up, she caused my parents a lot of stress. One particular memory that stands out is when, as a teenager, she threw my DM’s phone into a pond and destroyed ornaments that she had bought my DM for Mother’s Day, which were meant to be sentimental gifts. Our dad passed away in 2016, and I’ve always had a stronger relationship with my parents. I enjoy spending time with them, but my DS never did, which led to jealousy. She’s often accused me of being the “favourite,” which has led to a lot of bullying behaviour from her. She would lie about things to make me look bad—one time, a couple of years ago, I asked for a £40 jacket for Christmas (our budget was £50), and she told my DM I’d asked for a £150 one, even though I had shown my DM the link to the £40 jacket, just to make me look bad.

Fast forward to now—she’s 33, I’m 29, and she’s pregnant with her first DC, due in February. Her behaviour has only gotten worse, especially during her pregnancy. She and her fiancé got engaged last year, and my DM organised a family celebration dinner for a week later. My DS made a huge fuss about us not sending her a congratulations card in the post(even though we had both bought one to give her in person at the meal). She threw such a tantrum about the cards that she refused to attend the dinner, which ended up being cancelled and my DM losing the deposit - she didn’t speak to my DM
for 4 months after this (because of a card). She also went ballistic at me and my DM because we didn’t get her an engagement gift. It got to the point where I ended up sending £100 in vouchers just to stop the constant nasty messages, but I regret it.

Her behaviour has only worsened during her pregnancy. She’s become abusive over the smallest things and regularly accuses me of not sticking up for her. After an argument with our DM, for no reason, she bombarded me with texts, and when I calmly explained I wasn’t going to get involved (since last time I did, she cut me off for months), she blocked me for three months after sending the nastiest abusive texts ever. I hadn’t seen her for a couple of months, but I saw her on Boxing Day. She moaned about the presents my DM got her saying they weren’t very expensive and then moaned about the food. I tried to be supportive about the pregnancy, but it was hard. The day ended with me saying ‘I can’t wait to be an auntie’ to her telling me, “Well, it’s my baby. You won’t be spending any time alone with it.” When I asked why, she said, “You have PCOS, if you were meant to be around children, you’d be fertile.” She also called me a “pedo” for wanting to be around the baby. I was devastated, especially since she knows how much I want to be a DM myself and how hard I’ve worked to improve my chances of conceiving (I haven’t started trying yet). She also told my DM she couldn’t be around the baby because she’s “too old” (60s, works full time, and goes to the gym three times a week) and can’t be trusted around babies. She regularly tells my mum to ‘go die ’. The disrespect she has is disgusting and I’m sick of it.

I had major surgery in August, and when she came round, I needed help answering the door, she refused to answer the door because was “3 months pregnant,” leaving me to struggle to get up and walk, 3 days after the operation.

This constant bullying and manipulation have drained me, and I’m exhausted. These are just a few examples, but they reflect years of toxic behavior from her and I could write pages and pages of everything she has done.

So, AIBU if I cut her out of my life? Part of me feels guilty because I want to have a relationship with my DN when he’s born, he feels like a link to my DD who passed, but I feel like her behaviour is seriously affecting my mental health. Any advice would be appreciated.

OP posts:
mitogoshigg · 03/01/2025 17:34

She sounds like her issues run pretty deep, personality disorder even. You are under no obligation to put up with her behaviour so simply stop enabling her by going nc. I do hope she's even able to raise her child, some of that is pretty worrying

bellsend · 03/01/2025 17:37

I have a brother just like your sister. I have nothing to do with him now and am much happier for it.

your sister sounds awful and quite evil.

lobsterkiller · 03/01/2025 17:41

OP, your sister is a grade A cunt.

Protect yourself and let her loose, this will only get worse and not better. She's utterly revolting towards you and your mum and she's going to dangle that poor baby like a bright shiny object to keep you both in check

If you can't cut her off, go low contact and learn to grey rock. 💐

LivingLaVidaBabyShower · 03/01/2025 17:43

I have some experience in the space.

My advice is

  • Go NC
  • Do not foster or allow your mother to persuade you "because..." to have ANY form of relationship to your niece or nephew
  • Just dont have contact no matter what.

That child is simply going to be a sweet innocent who is collateral damage and will be the ultimate control device in whatever batshit games your sister decides to play

The threat of withholding contact, agreeing for you to go on a nice day out together and cancelling etc etc will all be standard banter and cause you immense hurt

Please don't give her the power to hurt you further by forming any attachment to your future niece / nephew.

Separately, i wish you the absolute best of luck with having your own children. FWIW i know several woman with pcos who have become mothers. One conceived her second child naturally first try!
The (very good) fertility dr i saw (when i thought i couldnt get pregnant but was in fact already pregnant and i didnt realise 🙈 ) basically said if you start early enough and are willing to do enough pretty much most everyone can have a child!

Member984815 · 03/01/2025 17:44

I had to cut contact with a relative due to behaviour like this from his wife , lies manipulation one-upmanship. Abusive texts straight out of a stint in rehab . I'd wager her fiancé gets it in the neck too. It breaks my heart but it's the best thing for your health. You need to step back regardless of what your mother does or wants , if you keep giving in to this behaviour it'll get worse. She won't change . Her comments were disgusting.

butterpuffed · 03/01/2025 17:51

Your sister sounds absolutely vile . When she's exhausted after having the baby , and asks for some help , remind her that she said you couldn't be alone with her baby and your mum is too old to be with the baby .

crumblingschools · 03/01/2025 17:54

Does she behave like this with other people? I would be seriously concerned about what sort of mother she is going to turn out to be

SnippySnappy · 03/01/2025 17:55

Ask yourself this: what else does she have to do to you in order for you to cut her off and protect yourself?

Kim5678 · 03/01/2025 17:59

Im so sorry she made those comments to you, she sounds awful and very unhappy. Having any kind of relationship would personally cause me a lot of stress and pain. She doesn’t seem to want you to be much of a part of her child’s life so as a PP said I would cut contact now and save yourself the heartache. Of course your mum will be a bit sad, but the blame lies with your sister and any guilt is not yours to hold

mathanxiety · 03/01/2025 18:00

Yikes!

Yes, go NC.

I shudder to think she'll soon be in charge of a helpless baby.

EveryOtherNameTaken · 03/01/2025 18:00

She's a nasty bitch.

So sorry OP. You must go NC as she isn't going to change. Even if she pretends to, those words she spoke are beyond forgiveable.

💐

ThejoyofNC · 03/01/2025 18:07

I could never forgive the comments she made. Cut her out OP.

And for what it's worth, I have PCOS and stress was a huge issue for me when TTC so she may actually affect your changes of conceiving with her behaviour.

thepariscrimefiles · 03/01/2025 18:07

She sounds absoluely toxic. Her comments about your infertility were incredibly cruel and something that most people could never forgive. Just cut her out of your life and don't feel guilty.

Tahlbias · 03/01/2025 18:10

I would go NC. You can't be around someone like that. She sounds mentally unstable. I'm wondering what time of mother she is going to be!

thepariscrimefiles · 03/01/2025 18:12

QuickScroller · 03/01/2025 17:26

I guess it’s just been easier. I did cut her out for a few months in 2022 but it really upset my Mum so I stupidly let her back in.

Please cut your sister out of your life and don't let your mum change your mind. Surely your mum can see how cruelly your sister treats you so I'm not sure why she would expect you to put up with this.

Schoolchoicesucks · 03/01/2025 18:13

She sounds awful. As much as I understand you would like a relationship with your nephew, she holds all the control over allowing this.
What is her partner like, is there any way of maintaining some sort of relationship through them?
In your shoes, I would send cards and gifts for the child and reach out to them once they are old enough to build their own relationships, which may be as an adult.

AcrossthePond55 · 03/01/2025 18:14

@QuickScroller

Oh Love, you don't deserve to be treated that way. Going NC is absolutely the way to go! Do it 'silently'. Block her on SM, your phone, etc. And remember that you owe her no explanation. No texts, no explanatory convos or emails. You just 'vanish' (figuratively speaking).

I do think though, if at all possible, you have a talk with your mum and tell her the steps you have taken to go NC. Again, you don't explain why, you don't 'ask permission' in any way. You just say "Mum, I can't deal with DS anymore so I've gone NC. As of now I don't want to hear anything about her or what she's doing or saying. I know this may be difficult for you. I don't want to get into it with you, but for my MH this decision is final" and refuse to discuss it. If she gets upset or if DS gives her a hard time, that's not your issue to deal with.

Your first priority must be you. If your mother wants to put herself 'last' by continuing to 'deal' with your DS, that's up to her. But you must also refuse to deal with her calling and moaning to you about it.

SemperIdem · 03/01/2025 18:15

She sounds like an absolutely foul individual.

Sister or not, life is too short to allow people who cause you such misery into it.

Cut ties.

justasking111 · 03/01/2025 18:17

Time to go NC it's hard at first but the memories do fade.

FuckoffeeBeforeCoffee · 03/01/2025 18:18

Can we have more examples? She sounds mental.

JMSA · 03/01/2025 18:20

Holy fucking shit. She sounds deranged.
I wouldn't blame you at all. I think your mum needs to take a step back too. Honestly, she'll just get worse with a child in the picture.

JMSA · 03/01/2025 18:20

Frostyaf · 03/01/2025 15:38

I was ready to be on your sisters side as people seem to go no contact over trivial things, but this isn't trivial at all! She sounds very toxic

Exactly. I'm not one to advocate non-contact normally.

blackrabbitwhiterabbit · 03/01/2025 18:21

LTBitch

Outlookmainlyfair · 03/01/2025 18:26

grey rock is needed. Side step her constantly before you are emotionally manipulated into free childcare which no doubt will open a whole new can of worms / accusations.
Grey rock may have better results than a more obvious cut off and give you less drama to deal with.

thescandalwascontained · 03/01/2025 18:26

You need to go completely No Contact with her.
She sounds evil and nasty and toxic. You don't need that in your life.

If your mum gets upset and tries to convince you to let her back in, tell your mum you'll go NC with her as well. You're not having it.

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