bro, you have done nothning wrong and received excellent advice from DT and pigeon rat
Guys need to stop acting like jealous teenage girls when it comes to banging chics. We all need to remember its always ladies choice! If you've dreamed about some chic for a yr, but she doesnt want you and wants your friend. Nut up and let him bang her. Not cockblock him like a bitch.
Quit hanging w/this guy. He is going to bring you down. By the time I was in my late 20's I had got rid of all my jealous cockblocking friends. I had one great friend. And, we got laid 10 times as much when we were together than any of the cockblock friends. (even though they were better looking, richer, etc) The goal was always for both to get laid. but, I was just as happy when only my friend did, bc I knew he would be there for me next time.