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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:
Mumofoneandone · 03/01/2025 18:27

She sounds awful. By all means, cut her out of your life, but I do have some concerns over her ability to parent her child. Her behaviour sounds deeply disturbing and I would be concerned about the negative impact of it on her baby.

Biffbaff · 03/01/2025 18:28

She's disgusting. Agree that you should cut her out. Frankly it sounds like your mum doesn't like her daughters not speaking because it suggests she could/should have done more to foster the sibling relationship while you were younger. Which is probably true.

Letsgocamping67 · 03/01/2025 18:30

You really need to stand up to your DM who sounds like she is enabling DIS behaviour. Make it very clear to her why you are going NC. it’s going to be a lifetime of bad behaviour otherwise. DIS does sound completely unhinged and cruel.

SoNiceToComeHomeTo · 03/01/2025 18:31

Good grief, the woman sounds unhinged. She may need psychiatric help, and an intervention for her baby, being so irrational and aggressive.
You don't have to spend time with someone who calls you a pedo for being interested in a potential niece of nephew, but keep a distant eye out for her child if it's possible.

Createausername1970 · 03/01/2025 18:32

I would definitely want to drastically reduce and eventually cut contact with this person.

If it upset your mum last time, and also bearing in mind she sounds very unhinged, I would probably opt for an unannounced slow fade and hope neither she not your mum actually notices!

Take up a hobby or start studying for something - doesn't matter how much time you actually put into it, but have a few valid reasons that you can rattle off at short notice as to why you haven't been in touch etc.

Goody2ShoesAndTheFilthyBeast · 03/01/2025 18:34

I'm genuinely amazed you have to ask tbh.
Someone's done a number on you if you have any doubt this woman needs removing from your life.

Survivingnotthriving24 · 03/01/2025 18:36

What a vile human being. I'm genuinely worried for her child, there's no chance someone who treats their mother and sister like this is going to be a loving attentive parent. Keep a distant eye on this OP in case you need to involve social services.

Starlightstarbright4 · 03/01/2025 18:37

I would do two things - firstly block her . Take control of this

I would also message / talk to your mum - be clear that you are not longer having contact with DSis. Tell her if she didn’t hear last conversation what happened.. then tell her you are going no contact and expect her support , tell her it’s not up for discussion..

it’s time to take control .

Cartwrightandson · 03/01/2025 18:42

What a nasty, evil person..go no contact and report to the police

Cornflakes123 · 03/01/2025 18:46

I hate to be presumptuous but she sounds awful and like she has some sort of personality disorder. How she is treating you and your DM is really really nasty. I wouldn’t blame you at all if you cut contact. It doesn’t sound like she is enhancing your life in any way.

Cornflakes123 · 03/01/2025 18:48

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 .

this as well. Most people are glad of help from family members when a baby arrives ..she may get a shock when she finds out how exhausting it is.

Nanny0gg · 03/01/2025 18:49

LouisvilleSlugger · 03/01/2025 17:08

You clearly hate each other - it’s definitely a wise move to cut all contact between you. Hopefully it won’t have any negative impact on your mum.

How in any way is this toxicity down to the OP?

Her sister is absolutely vile!

WaltzingWaters · 03/01/2025 18:53

She sounds utterly horrendous. Insanely manipulative, spoiled, and plain nasty. What she said about you being infertile is unforgivably disgusting. I would go completely NC. I know it’s sad not to be in your nephews life, but she’ll only use him as a further way to manipulate and bully you unfortunately.

Sayitwithasmile · 03/01/2025 18:59

Not much shocks me but this thread OP has shocked me, your sister sounds unhinged and mentally unwell. I would not hesitate in reporting her to SS so they can look to safeguard that baby, she's vile. Definitely go NC.

2024onwardsandup · 03/01/2025 19:03

She sounds like she is very troubled. Id certainly put in place clear boundaries.

But I'd also wonder what might have happened to her in childhood.

My sister used to be horrific and still is sometimes although our relationship is improving. I was very low contact with her for a long time.

I know why she's awful - both our parents were awful. I was the favourite - which had a different impact on me. She was very much not the favourite.

MzHz · 03/01/2025 19:04

TwoBigNoisyBoys · 03/01/2025 15:36

She sounds utterly awful. I think the best thing would be to go NC. I know you’ll be sad at not being part of your niece/nephew’s life, but she sounds unhinged to be honest and I think any involvement you have will be at your detriment.

(And I’m saying this as someone who is very very low contact (2 or 3 text messages a year) with a sibling due to the stress of having them in my life, so I really do understand)

I could have written this myself, even down to the sister and 2/3 times a year.

@QuickScroller life is too short for this awful person to be allowed in your life just to destroy it

SnippySnappy · 03/01/2025 19:05

Biffbaff · 03/01/2025 18:28

She's disgusting. Agree that you should cut her out. Frankly it sounds like your mum doesn't like her daughters not speaking because it suggests she could/should have done more to foster the sibling relationship while you were younger. Which is probably true.

Agree. I think this is fairly common, too - my MIL seems to take it very personally that her two sons don't speak. Despite there being good reason for it!

ThisIcyHare · 03/01/2025 19:08

She sounds like she needs the whole family to cut contact, what a horrible being. The comment about you not being fertile therefore shouldn’t be around kids, what even is that? Wishing you all the best for your TTC journey, cut contact, enjoy life without her.

Blueblell · 03/01/2025 19:11

A relative spoke like this and she had a serious mental health diagnosis. As someone said up thread - pregnancy could be making symptoms worse.

GreyAreas · 03/01/2025 19:12

It's entirely possible that your sister's personality problems have developed in the context of an unhealthy family dynamic, however you cannot fix this and are not responsible for it. She has given you an incontrovertible reason. If she contacts you send one clear message. Tell your mum that you are going NC. 'You have insulted me in two of the worst and most hurtful ways possible. You have frequently behaved in unacceptable ways. I do not intend to have any further contact with you or your partner. I will not respond to any communication.'

OhcantthInkofaname · 03/01/2025 19:13

I'm not sure why you continue to be around her! 😫

LookItsMeAgain · 03/01/2025 19:16

I would have cut her out of my life years ago.

Block her. Tell your mother why you're blocking her and you don't want to hear ANYTHING - including anything about the upcoming birth, nothing. Tell your mother that you also don't want her to be involved and you would really prefer that she doesn't pass on any details of what you're doing.

If sister wants to know, sister can contact you by apologising for her frankly terrible behaviour.

What you could do is have a small savings account in your name and put a little bit of money aside in it and when your niece/nephew reaches a certain age, you could send it to them, if you wanted to.

AshCrapp · 03/01/2025 19:17

Cut her loose. I've only ever had one single abusive text exchange with my sister. It's only one, becauseI drastically reduced contact after that.

BruFord · 03/01/2025 19:21

I don’t think that you have any choice except to cut her off. If she tries to contact you, quote back to her exactly what she said to you:

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.

LuckyPeonies · 03/01/2025 19:25

She is vile and abusive and toxic and you (and your mum) should have cut her off years ago. Relationships must have mutual respect and caring, one-sided ‘i can treat you any way i want and you must put up with it because we are family’ is utter nonsense. Get rid of her, don’t let anyone guilt you into reestablishing contact, and be happy you no longer have to deal with this monstrous person.

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