<human>: Basically I've lived with this girl for 2 and a half years now. We have been dating for almost five. While I really love her, we've always clashed personality-wise. I tend to be a bit more passive and let things go while she is confrontational. 

These differences typically wouldn't bother me but she has a bit of a rough past with her family. Her mother and father were both psychologically abusive to her, her whole life and often times neglective. She has manic depressive tendencies because of this. I am not well equipped to deal with her sudden manic outbursts about trivial things.

Though I love her, I can't help but feel a great deal of resent towards her. It seems that anything I've had going well for me in the past she has been jealous about. Including my job. She used to get mad at me for having friends over late at night, so I stopped having them over late and it seems she just was mad at me for having friends. When I go to hang out with a friend she will text me snarky shit like "having fun with your boyfriend?". She doesn't have any close friends and sums it all up to nobody being good enough where we live.

Anyway we've broken up before and she will start screaming, crying, and although she hasn't done it recently, she has a past of hitting me. To make matters worse she has no friends here, and her family lives across the country. Not that they would be much help anyway. HELP PLEASE.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Girlfriend is manic depressive, I feel it wearing down on my mental state and I'm afraid to break up with her because she has no support system.