if they are treating you like crap then they are not worth it. i have a lot of friends that i had for a loooooong time and they all back stabbed me and acted like they didn't know me. but you know what it works out to my advantage because i got to know better friends and i don't regret not trying to work things out. but since it seems like its really hurting you, i think that maybe you should write them a e-mail explaining to them how you feel, since they will not talk to you in person.