Really considering giving up in life?

why live if the most precious thing that you want in life which is love decides to leave u i'm sick of this **** i finally find someone worth it and we are on the brink of breaking up and as hard as i try is not working, if i lose her everything will lose meaning i don't want to sleep, eat, go to school or anything else if that happens why does gof fo this to me all i ever asking for me was this and now he wants to take away i might as well just die or move to a island live alone so might feelings will never get hurt or if you think there's a reason to keep breathing in this planet tell why to do so