<human>: So to be straight to the point I've finally decided to break with my emotionally abusive girlfriend. It was the classical, when things were good they were really good but when things were, oh boy were they bad. We would argue at least every second time we met and she was the one who the problem 99% of the time. It could e something as simple as me forgetting to get her sugar for her coffee and things would blow. "I never care about, she doesn't feel loved and appreciated. I'm a terrible boyfriend etc". So after me starting to question myself and some what depressed because I didn't know if I was selfish or going insane or if she was in the wrong, I broke up with her today. The thing is. She's treated me like absolute shit, and she never thought I'd break up with her. I should add that she does suffer from mental health issues. After breaking up with her she's not told me how much she loves me, how everything is so good and she can't see why I wanna break up with her. Now I'm a 'nice guy', it hurts me so much to see her suffering like this but I need to stay strong and not give in. Does anyone please have any advice or stories or anything to help me stay strong. Her and I have fought so many times and I've said 'just one more time' multiple times and it's always chance after chance and I'm done but I can't help but feel lost and alone.

Condense the text into a few key points
<bot>: manipulative girlfriend has pushed me to my limits, I've broken up with her and she's not taking no for an answer. What should I do?