I mean, I spend alot of time with this guy, but now he's not even kissing me anymore. He flirts with other girls in front of me but doesn't like it when I hang out with other guys? He told me in the beginning he just wanted to be friends, but he never introduces me as such, and now seems to be getting into arguments with me or getting annoyed with me. I don't understand, was he/is he using me? Thank you so much!

Hello! First off, I wanted to say that I loved your advice-it's really insightful. Excellent job. Now, I know that you have been answering about alot of different situations, so I suppose I will ask about mine too (as brief as possible ;] )
I met a guy in one of my college classes. He approached me, made small talk, asked for my number and proceeded to ask me out the same night. He had just gotten out of a long term relationship and so had I, but I decided to hang out with him a few days later anyways. We talked for awhile, and then over the course of the next few weeks starting hanging out more and more. He introduced me to his friends, and I'm always over his house. The thing is we made out and such, but he did not try to have sex with me. He never did the times we were alone. What is confusing me is the fact that his friends always tease him about his past girlfriends whenever I walk into the house, or tease him that he hooked up with another girl. When they accuse him of hooking up with another girl he explains to me that thats not what happened, that he didnt do that. Why does he care what I think?