I`m having some friend issues?

So last year I lost 3 of my best friends. And my only remaining friend ditched me this year. Since I'm basicly a loner now, I started to talk and help other people I know but don't usually talk to when they feel outcasted, alone, abandoned, betrayed, like me. I stick with them one or two recess's, maybe a few days, and the moment their friend problem is resolved, they ditch me. wtf? When I try to make a friend, and help others, I just get hurt again. And again, and again, and again. I'm starting to get really anti-social. I feel like I can't trust anyone anymore, because nothing I do or say will help me become friends. I`m on the verge of going the emo route and I reallllllly don`t want to do that, but if it`s the only thing that can help now.... please, give me some advice, anything, anything at all.