<human>: My girlfriend and i met each other when we were 18, this is our first relationship for us both.

The last year or so our relationship has been shitty, from time to time my gf has told me "i have to think about this relationship, maybe we'll brake up soon", which hurt me really much. But after a while she always tells me she wants to stay together. After that it will stay good between us for a while, but then it will all start over again.

My girlfriend is also really insecure, last week she saw that she gained some weight (about 11 pounds, 5kg) and she flipped her shit. Trying to puke, and after a while taking a knife and saying that she might as well kill herself. I took the knife and called her mom who calmed her down.

Yesterday morning she told me she couldnt have sex with me because she felt fat, and that we wouldnt have sex for about 1,5 months. Then she asked me to think if i wanted to stay in such a relationship. After i got home from work she apologized and told me she wanted to fix things between us.

Did i mention we live together about 650miles from my closest family?

We have some other problems too, but most of them are originating from her insecurities, for example about every other time i want to go out with my friends she "feels like shit" and i come late because she wants me to comfort her.

We have wonderful times too, i really enjoy being with her, and i really love this girl.

Anyway, my parents tell me that i should breakup with her. Leave her, and to be honest i'm afraid we don't have a future together, but i really love this girl, and i'm afraid i will change my mind later. It's a really big step to make for me to pack my shit and leave, and i find it hard to do so, even though i (most of the time) feel deep inside of me that this isn't healthy.

Reddit, please guide me through this

Could you distill the essence of the text into 1-3 sentences?
<bot>: Relationship has been bad for a long time, family said i need to brake up with her before it gets even worse, i have a hard time doing it.