For me, angry words didn't help me, they cut me down to the bone and sent me deeper in depression. Again, that's just me, I'm not going to tell you that you did or did not do the right thing.

I too, went back to my ex-wife (well, just wife I guess, it's not legally over) and I only recently found out why. More on that in a second.

I was loving life with my girlfriend and everything was good. Then depression would hit me after coming down from mania. When I am depressed, I hate myself. I think I am worthless and I isolate. On top of that I was a big jerk to my girlfriend. I pushed her away by being distant, mean, ditching her, toying with her emotions and all around just being bad to her. The first time I did this, she didn't understand. What happened to the amazing man in there? The second time she told me that I had problems that were more serious than I was allowing myself to see. She used the words bipolar. My mom had used that word on me in my early teens. My ex-wife when I first fell in love with her 9 years ago.

So I did this twice. I destroyed the best thing that happened to me twice because I didn't know what I was and I'd fall so deep into depression I couldn't understand why people would want to be with me. So I'd push them away. Both times I pushed my girlfriend away I went back to my ex wife and said "We are going to make it work." I left (my wife) her because she was a drug and alcohol abuser. She'd get downright nasty and mean to me when she was drunk. She was mentally abusive and manipulative when she wasn't drunk. So I had reason to leave.

But I went back to her in my depressed states. Why?

I only recently figured out that why. She fuels my depression. She makes me feel terrible about myself. So when I am depressed and hating myself it makes perfect sense to be with a woman who fuels what I am feeling at that time. Instead of the happiness I was getting from my girlfriend.

Sorry, that might not have a whole hell of a lot to do with you, but it sounds like there are some similarities with your situation and mine, so I am throwing that out there. The difference is that I want to be in a relationship and I want to work at making sure it's good for BOTH of us, not just myself. So I want to do what I can to manage this brain I've been given so her and I can have a great life together. Your boyfriend clearly has zero desire for that.

So will anger work? Maybe. Maybe now he'll look at himself and see what he's doing and want to be better. Or maybe he is depressed and that throws him deeper down. I am not at all saying it's your job to carry him out of depression, he's given you no reason to want to do that for him. I am just saying that try not to put to many adjectives on what you think of him. Saying things like you hate him and that he isn't good for anyone is just anger and that gets neither of you anywhere. Something like "You have been selfish, immature and you do not handle your BP well. I cannot be with you until you want to handle your BP so I am leaving"... something along those lines I think would be more constructive and get him to think. You saying "I Hate you" might just make him hate himself or make him lash out at you. As always, that's just my perspective.