Is he gay or straight?

There's a guy I really like in my class and I sit wit him a lot. Ive known him for 3 years (were in high school) and were really good friends, but I cant risk revealing that Im gay by just asking him directly if hes gay. He isnt stereotypically gay but not at all masculine either and he loves glee, gaga, spears and so on and he somethimes says stuff only a gay guy would say such as "did you see britney in that horrible red dress". His voice is a little gay though. Anyways, I tease him a lot in class and he isnt bothered to be touched if i tickle him or something or grab his arm or poke him constantly and i think its pretty obvious that im gay, you can tell from a mile away. I realize that he might be gay but simply not like me in "that way" and thats fine with me, but I really want to know if hes gay because I dont know any gay people and it would be nice to talk to someone that is like me. Anyways, I invited him and 2 of my girlfriends over and we got really drunk and started playing the truth bottle, the girls asked him who he likes and he said he likes a girl in class which he also spends a lot of time with, but he said he realizes she would never take him seriously because hes more like a brother to her (and it all sounded very formal, like he didnt really mean it). and i agreed because my best friend (girl) also thinks of me as a brother so i can relate. i don know what to think. could he be straight? am i delusional or something? could he be gay but still not accepting his sexuality? anyways, we watched piranha 3d and he said "we like boobies".. also, later that night my girl asked us a question "would you ever had a gay experience" and he said no and i sad i would (i was reeealy drunk) im glad i got it out there, i dont want no one to think i want a girlfriend or something, but i didnt say that im gay directly. I dont knoe why but later i shuved my finger in his nose and he just laughed... dont ask why i did that... he also doesnt hang out with other guys but mostly with girls and me. he asks me to download movies for him which i always do gladly and stuff like that.