Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: TL;DR Boyfriend’s sister has Borderline Personality disorder and I can’t be around her constant negativity anymore.

Hi guys! My boyfriend (23) and I (22f) have been dating for almost two years now and for the most part, things have been great. However, about a year into our relationship his sister’s (21) mental health has declined and she’s now been diagnosed with Borderline Personality Disorder. 

For most the ages of 13-20 I suffered pretty hard from depression and anxiety and at the age of 21 I got on meds which have helped me drastically from then till October of this year, which is when I stopped taking them and have been doing absolutely great.

In regards to his sister, I do try to do my best to understand that she is suffering from BDP but the shit she says is really starting to affect me. She’s constantly talking about how she wants to end her life (but speaks about it in such a happy way, laughing, etc) she’s constantly going off at her boyfriend for talking to another girl or even looking at one, she tells him that she’ll kill herself if he leaves her (once again laughing about it), she’s constantly having breakdowns (i know that she can’t help it) and overall she’s extremely negative towards everyone, even telling me from day 1 that if my relationship ends with my boyfriend it will because I cheat on him... WTF? What’s even worse is that I can’t get away from it; she’s not only my boyfriends sister, but she’s in my friendship group as well and she brings this behaviour to whatever plans that our friends organise and understandably, it brings the mood down for everyone. For example, the day 5 of us went out for lunch (boyfriend + me, sister + her boyfriend, and a mutual friend) and at the restaurant we were all talking and suddenly she (bf sister) interrupts the conversation saying that her boyfriend has to stop taking to us because she wants attention. 

I’ve been trying my best to seperate myself from her behaviour as I’m feeling it not only take a toll on my mental well-being, but it’s also taking a toll on my feelings toward her. I don’t want to hate my boyfriend’s sister, but at this point I’m starting to.

My feelings are making me snappy and I’ve started to unintentionally take it out on my boyfriend i.e my boyfriend wanted to go to the movies to see the new Spider-Man so I bought us tickets and 20 minutes before we were supposed to leave he texts me says that he probably won’t be able to make it because he’s sister is crying and punching walls (presumably because her boyfriend’s on a holiday). At the time, I ended up getting really upset over this as I felt that I had been pushed aside and it resulted in a fight with my boyfriend. Looking back now, I understand that I crossed a line and I had no right to go off at him for wanting to stay with his sister, but I still can’t help but feel disappointed. 

I’ve told my boyfriend how I feel and how her behaviour is affecting my mental state and the way that I feel towards her, but he keeps saying that it’s my problem for feeling this way in regards to her behaviour, not hers. It’s almost as if he has become desensitised to her behavioural issues and doesn’t see how bad it is. Because of this situation, I’ve started taking my meds again (two days in) because I just feel so distressed about all of it.  

At this point, I just can’t see myself dealing with this any longer. I’m either going to end up losing my shit at his sister when she says one more negative comment or it’s going to keep taking a toll on my relationship and eventually it’s going to crumble. 

AITA for wanting nothing to do with this anymore for the sake of my own mental health? 



wanting to seperate myself from my boyfriend's bdp sister