Hi there
My DP's sister was diagnosed with Borderline Personality Disorder (BPD) about 4 or 5 years ago. She did a lot of the usual stuff you might expect such as suicide attempts/unfounded accusations/middle of the night abusive calls/substance and alcohol abuse/inappropriate sexual relationships/extreme spending resulting in serious debts etc etc. Seriously, the list goes on and on and is generally chaotic.
Fast forward to now. She's doing well and the family all delighted.
Except she refuses to have anthing to do with dp. He found her after she attempted suicide (not for the first time) and she persuaded him not to tell his parents (before we met and her diagnosis) and eventually she decided it was all his fault. He abused her allegedly. I know one night before I met him he and she got drunk together and, he told me and I believe him, she tried to passionately kiss him but he refused.
I kept in touch with her with phone calls before I knew this, but they tailed off as I felt this was unfair to dp as she refused to have anything to do with him. She had previously accused every other family member of some sort of sexual/physical/emotional abuse and has singled out other family members out in the past.
Now fast forward a couple of years and dp and I have a 2yo together. Dp's mum sometimes looks after dc and has recently started to include sil in this. I (MH professional) encouraged this initially, thinking it might be a way to get the family functioning again. Now, I am finding it hard as mil has taken sil to nursery to pick up dc. I had asked her not to, but I also have encouraged mil to try to do things that may aid sil's recovery. I have now changed the password - mil has never been given the door code etc as I worried this may happen at some point, so she has to ring the bell and give a password,.
I am worried as all the family now think sil is well now, but she clearly isn't. In addition, as a Mum, I am getting tired of hearing about my daughter having fun with an auntie who won't spend time with us.
What to do? Mil tells me about it every time they are together and I have always been non judgemental about the situation and now want to put my foot down and say she should not be seeing our child if she won't see us.