Controlling partner

My bf is controlling, and I don't think he even really realizes he's doing it. We've been together for almost 7 years. I moved out of state to be with him 5 years ago. I never really made friends, just a few acquaintances that I keep up with on FB, and one friend from back home that now lives about 30 minutes from me that I see once every few months. I was in a sorority in college, and have recently decided to become active again as a way of getting back to myself and doing something for me. I went to a meeting today, and before it was over, my bf called me. I didn't answer of course, but called him back about 10 minutes later when the meeting was over. He really had an attitude about it and said that he didn't know why I was wasting my time anyway, that going there wasn't going to do us any good. Any time I try to make new friends, especially on here, he has something smart to say about it to make me not want to meet up with the person or do whatever it was I wanted to do. I've been telling him for a while now that I need something for me, that gives me a break, and I think this is it. But acts like giving up a few hours once a month is a big deal. Mind you he's not even home right now, he's out of town for work....