not interested anymore? need input/

[I have no title]

so I met this guy in my university in september...he liked me...I also liked him, but I had a boyfriend at that moment, and I couldnt cheat on my boyfriend..

that guy was taking me out every night, drinking champagne with me, dancing, calling me and texting me everyday....I was rejecting his trials to kiss me or touch me, because as I said, I had a boyfriend...so that guy understood that he wont acheive anything from me....and since I once talked to him not so nicely,I told him "dont call me out anymore cause you are annoying me and I have a bf"...so he told me "fine, im done with you"....and since then, he never called me again....well, then, 2.5 months later....yesterday, he called me....I was so surprised.....(btw im not with my bf anymore because he dumped me for another girl)....so I was rlly happy that guy called me, cause I liked him from the very beginning...we saw each other...went out only two of us, had drinks at the bar....and then it started....we started kissing, we went to his place, and we made love...he told me he was still mad at me that I rejected him from the beginning (and I could see and feel that, cause he wasnt as sweet and nice as he was before I rejected him)....so we had a nice time, and today....I hear nothing from him...How do you think did he just use me? or does he like me, but he still feels angry after being rejected?

I need some input on what should I do....I dont want to call him and take him outside, cause then I might look desperate or too sticky...should I wait for him to call or should I call him? .and he is flirting with other girls on facebook....need input, dont know what to do,any advices?

[I have no title]

btw forgot to mention, that like 1 month ago, I tried to call this guy out for a drink. but he didnt reply to my text...he neither replied when I apologized for talking not nicely to him....dont know what to do....before he was taking me out for dinners, callign everyday, and yesterday he called out of nowhere and dissappeared today....im nervous.