My gf(20) and I recently broke up.  She's been diagnosed with bpd for 4 years.  While her bpd symptoms caused a lot of strain on our relationship and pain, the reason I broke up w her was bc I found her tinder account.  Although she hadn't met up with anyone, any intention to or thought of this hurt badly.  We kept in contact for about a week and ended up hooking up once which we had talked about the repercussions of a lot before we did.  Eventually I decided I didn't want to talk to her anymore because remembering all the ways in which I was hurt by the relationship It was unhealthy for me to continue it.  Immediately (5 min) after this she started saying horrible things about me to other people that weren't true and she got back with her abusive ex.  Her friends know none of the things she's saying about me is true and she'll probably lose a lot of friends for the way she's acting.  The ex is someone who hurt me and a lot of her other friends so going back to him is not only detrimental to herself but really fuxked up to a lot of people.  I know I shouldn't take anything personally and this is just the nature of bpd but it's impossible not to be extremely hurt by this.  I hate her more than I thought I could hate someone.  I'm so angry all the time that someone who loved me could do this much to hurt me.  All though it happened many times during our relationship that it got pretty abusive but this feels so fucked and knowing theres no going baxk ever is terrible but i hate her too much for that.  I'm so angry and more than anything just fuxking sad.  I'm trying not to go do shit to spite her back bc I gotta be the bigger person here but I don't know how I'll get over this.  Came to this thread in search of some perspective from people who have been on her end.