Loosing all my friends..?

Okay so I used to have a lot of friends and people over all the time but now everyone says I'm pushing everyone away but I don't think I am. Just when they lie to me or I find out they talk **** about me behind my back I say I don't wanna be friends anymore..well now I'm down to really one friend and she goes to her dads one week and then her moms. I can only hang out with her when she's at her moms and she's always busy! So for summer its been super boring..what can I do? I want friends but I don't wanna change me. Please help..thanks in advannce.