<human>: Can you give me a shortened version of the text?

I don't know how to start...
My girlfriend loves me with all of her heart. Too much of her heart. I'm her entire life. She has no friends, she tries to use mine and they think it's awkward. She cut herself the first time we broke up 7 months ago (got back together right after). She's overly emotional, everyone says she over reacts (Shes mad at me everyday for something) says I make excuses etc. I have lied to her about drug use but I can admit to it and I told her about it a few days later, she was pissed which is understandable. I think I have feelings for other girls... and she has thew worst self esteem issues about her body and instead of using the fitness help I give her (I'm quite in shape and she's over weight) she just wants the pity. She loves me with all her life, and I'm afraid of breaking up... I don't know if I love her and I don't think I do. But she loves me unconditionally and would jump in front of a bus for me. What should I do? I know I'm only a teenager and this can be brushed off as teenage drama but from my perspective it's a big deal.
<bot>: Girlfriend is overly emotional and fights everyday, but would jump in front of a train for me. I think I want to break up but I might be being stupid.