I am bisexual and have a crush on my roommate, but he has a girlfriend. I am very attracted to him and we often sleep in the same bed and masturbate together while watching str8 porn. One time I suggested that we sleep naked and now do so on occasion. We slept naked a few nights ago and I noticed him tossing and turning. He got closer to me and I noticed his hand was brushing my hand. After noticing this I intentionally began touching myself under the covers and noticed him watching me. But nothing happened. What does this mean? Is he bisexual too? I want to try something with him but am scared at the possibility that it would ruin our friendship. He is my best friend but I want him so bad. What should I do?