I think my girlfriend is going to start starving herself.?

its ok jus slow down, yes it's horrible to starve yourself, it can kill you or make you very ill to where you can't eat or you eat it and throw it up. Don't just sit there, get up and do something about it! tell her to just make smaller proportions of her meals, thats what alot of people do or change her diest , ask her why she would starve herself and tell her that you love her and you don't want her becoming to skiiny or sick. Tell her to just eat smaller proportions and maybe once a day you both can jog or rum or even just walk together to get a good dailey exercise. Good Luck! :D