Breakup and friend issues?

Me and my boyfriend broke up in May, but I'm still really sad and depressed about it, and haven't really done much of anything this summer...I hardly went out this summer because all my friends from college live far away and I'm transferring to a new school come fall. No one seems to ever want to do anything with me, and I've had people cancel on me, ignore me, etc... and I'm the one to always initiate phone calls, IMs, etc without a return...I'm just wondering what and can I should do because I mean I'm not a mean person, I'm a good student, and I try my hardest, I'm just a tad shy, but all I want is dependable people to want to be my friendss