Sounds like she needs to start taking responsibility for her behavior, which is something you can suggest, but can't force. Nor is it your duty to.

Other than that, I would say to watch out for the drama. From what I read in the opening post, the relationship, in some form, makes you miserable until she comes out of her rage and makes everything better. Perhaps you see her as an antidote to the pain and strife. This, in my opinion, creates a dependence on her and starts to look like addiction. Your thinking about her when she's gone could then be viewed as a form of withdrawal. (Let me say right now that I've experience ALL of this and am by no means judging you or condescending at all.)

Because the pain and strife are ultimately being caused by her, the more you seek her out as a solution to the pain you feel, the more you feel the pain of being with her. So you end up in a cycle, seeking her out as both a remedy and malady. The foundation for a strong addiction has been laid out.

I think it's easy to confuse the longing you feel for someone with true love, especially given how the media likes to portray love as something intense and painful. I am not saying that you don't love her. I think you probably do. But I also think it's easy to confuse the feeling of longing with the feeling of love. In my own experience, love is actually a lot simpler and a LOT, LOT less intense. It's simple caring, friendship, and at the core, safety. If you can tease these two apart, I think you'll have better clarity about what to do to restore this situation to something peaceful, even if that means moving on.