I had a similar situation happen to me recently. I poured a lot of care and love into a friend of mine but he has completely backed away from me. We dated very briefly and both of us were ok with just being friends. But he seems uninterested in putting forth any effort anymore. It's really depressing as I have hardly any friends and tried to be the best friend possible to him. You and I deserve a best friend that will feel the same towards us and appreciate us. It's time to cut our losses and try to make new friends. At least that's what I'm trying to do after my heartbreak.