My gf is moody. I'm not sure what to do. When things are good, they are really good. But when she flips out, she really flips out. I don't know if I can get used to it. I think she needs to get some help. What do I say?

Certainly, there is the possibility that she is bipolar. It's very difficult even for a professional. You can be honest with her and tell her what you are observing. If she flips out, you'll have to make a choice. It's unhealthy to stay in a relationship like you describe.

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