Search Results: sleeping with his best friend

My friend and I have turned from good friends to best friends within the last year. But, things seem different from about Christmas of last year. He's always bringing up the fact that I don't give head (long story about why I don't) and we're always talking about sexual preferences (to which he always says he likes when girls make the first move). He remembers little things that some of my best girl friends dont even remember, sent me a picture of strip cards against humanity rules, and saves me from guys at the bar by pretending to be my boyfriend. We were in random conversation one time and asked if that thing from how i met my your mother (where a guy gets naked and waits on your bed for you) would work on me. There are other examples but that's what I can think of off the top of my head. I don't know what do you guys think? We were friends freshman year through junior year but got a lot closer senior year (correlating with the fact that I got better looking, is the only weird part about that). This all could be a coincidence and me looking too much into it but I'd rather know before I sleep over his house again after a party and not think anything of it when he wakes up in just his underwear the next morning. (but I guess sleeping in jeans sucks right?)

Sincerely,
Confused.