Sorry if the grammer's a little off. I'm typing on my phone whilst walking.

I asked her [ex now] about this dude she kept putting in her WhatsApp display picture. She said it was her boy bestfriend. I then reassured her that I wasn't mad about it, since my best friend is a girl. She started getting into a massive strop about it, immediately accusing me of fucking [bestfriend] behind her back. No matter what I said to reassure her, she wouldn't let up. She demanded pictures of her to see how she ranked up against her.

It got worse.

Over the summer, me and my bestfriend had a massive falling out. My ex went through my phone and got my friend's number. Some time later, my and my ex broke up (for the millionth time). She used this opportunity to start getting friendly with my friend. About a month later, while trying to work things out with my friend, she told me about all the things that [ex] was telling her about me, and generally making me out to look like an absolute monster, one of the things she said being that I apparently pressured her into having sex with me. I never felt so sick to hear such an allegation said against me. She refused to speak to me for a while after that.

It took me a while to finally break things off for good, seeing as she effectively cut me off from everyone I was close to at the time. Me and my bestfriend eventually reconciled, but one night, we were talking about getting each other Christmas presents. I remember saying something along the lines of "my gf would go mad if she knew I was getting u presents". At this point, my friend had enough, and called me to set me straight. One of the things that really stuck with me is that she felt I had no control over my own life, and that the idea of having to ask [ex] for permission to do anything was absurd. We ended up talking on the phone for 3 hours, the first proper conversation we had in months. About 5 days later, I finally found the courage to leave [ex].