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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To feel like my relationship with my DSis is finished

29 replies

Ivehadenough123 · 30/08/2025 17:32

NC for this one as quite personal.

My DSis is older than me by about 17 years. I’m early 30s. We didn’t really grow up together as she moved out when she was 18 and I was 1. Our relationship has had peaks and troughs, mostly troughs.

It would be an entire novel if I wrote everything down so I guess I’ll have to summarise! Some of the main issues between us:

  • her partner is abusive to her (I know it’s emotional, don’t know about physical). I temporarily lived with them when I was about 22 and had to tread on eggshells constantly
  • Her partner and his mates used to laugh and joke about ejaculating all over me, when I was about 13. DSis tells me it’s just a joke and thinks I shouldn't be upset.
  • Her partner groped me and my mum once Xmas when he was on cocaine and DSis refuses to talk about it. She’s never mention it since. This was 20 years ago
  • her partner has groped me in the cinema, I was about 22
  • she bought me a few things when I went to uni and paid my phone bill a few times and about ten years later she flew into a rage as I hadn’t ’paid’ the money back (even though it wasn’t a loan). I paid her back to keep the peace but it took 6 months of me asking for her bank details for her to give them to me - I think it’s a control thing. (In hindsight I should have just posted cash.)
  • she is constantly passive aggressive and unpleasant in messages. When I say to her that her messages are upsetting, she gaslights me and says I’m imagining that they’re nasty
  • she hasn’t invited me anywhere or asked if I wanted to meet in a decade, if we meet up it’s because I’ve planned it. Then when we do she’s weird and it’s awkward
  • she’s nasty and dismissive about my entire life/anything I do
  • she recently told me that she’s angry at the way I’ve treated her over the years, when I asked for examples she said that once I didn’t get back to her about going to a museum and once I cancelled on her (I didn’t have the funds to do what we had planned - she didn’t lose out on any money and it wasn’t a last minute plan). When I ask her what else, her nastiness starts escalating and she’ll just shut the conversation down. I’ve asked her if we can try to clear the air and sort things out, which made her nastiness escalate
  • she was really awful to me once and I was upset and told my mum, who told DSis that her behaviour wasn’t nice. DSis called me and was very threatening and angry that I thought it was okay for me to talk to other people?!

there is A LOT more but that’s just off the top of my head. it’s draining and it feels like it can never be resolved because she won’t forgive and forget but at the same time thinks I am being too sensitive about the stuff with her partner (not as though she’ll explicitly say it’s true anyway). I don’t know what to do other than go no contact.

AIBU: try to smooth things over
AINBU: to go no contact (I’ve tried low contact and it makes her more unpleasant as I think she feels like she’s losing control of the situation)

OP posts:
SuPollardsPolkaDotFrock · 11/09/2025 09:25

Ivehadenough123 · 08/09/2025 06:59

Yes but it’s not that straight forward. Huge emotional decisions are a lot more complex. Made even more complicated by the fact she’s in an abusive relationship and her partner will probably be happy that I’ve cut her off. Sorry but it’s not as black and white as you suggest.

I disagree. You just click the block button. Her abusive relationship is not your concern.

Swiftie1878 · 11/09/2025 10:10

Ivehadenough123 · 08/09/2025 06:59

Yes but it’s not that straight forward. Huge emotional decisions are a lot more complex. Made even more complicated by the fact she’s in an abusive relationship and her partner will probably be happy that I’ve cut her off. Sorry but it’s not as black and white as you suggest.

It really is.
Send her a message saying you are stepping away and wish her luck in her life. Tell her that you are still her sister, but think you’ll both benefit from the space of no contact.

That’s it. Over and out.

If she ever comes to her senses and leaves her odious partner, she may remember the ‘still sisters’ thing and see if she can rebuild with you, but then that will be under your control.

Elsvieta · 11/09/2025 21:00

You can't build a good relationship with someone by yourself, and it just doesn't sound like she's interested really. I'd just drop the rope. If she wants to get in contact AND behave decently then maybe you could give her a chance. But I don't think it's the slightest bit unreasonable to refuse to spend any time at all around a man who sexually assaulted you.

It doesn't sound like you have dc, but if you do in future don't ever let them be around him.

GreyBeeplus3 · 29/12/2025 17:59

Horrible woman made worse and more toxic by the abusive treatment meted out by a perverted nasty inappropriate man
I'd say stick a fork in you; you're so done
The odds for both of you from the start were never good as I feel she may have truly resented you AND that you got to university.
Her nastiness to you is mis directed as she wont stand up to her partner and being the younger sister she bullied/belittled you instead
Stop flogging yourself over someone who if their partner had attacked you
She would've probably said that you led him on
Have had friends with idiot siblings who partners did this and people/family sided with the couples themselves whilst the victims were ostracised
You owe her nothing
You are not her punchbag
Leave well alone she doesn't care never will and still vaguely thinks that she'll always be able to insult you
For yours and your mother's sanity
Cut all losses
And
Block her completely

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