is my best friend in the closet?

I have strange suspicions that my best friend might be gay. Ever since I have met him he has always had the need to touch me. We are both left-handed, have foot fetishes and tremendously get along very well. Although he has never touched me inappropriately, it’s still like clockwork that he always has the need to touch my chest, arms, legs, feet and thighs. He has a strange phobia as to nudity; He makes it a point to never undress fully in front of me. I sometimes feel he is has a phobia. He once objected to me undressing in front of him in which he only saw my butt. I thought that was weird since he knows I go to the gym and shower in front of many men with no problem at all. He tells me that I am a “stud” which I don’t mind since I am gay and as far as I know, he does not know that I am gay. He is a very religious person and strives to do the right thing; still I can’t seem to refrain from thinking that is he not totally straight because of his behavior towards me. He is recently divorced and shows no interest in women. He watches me like a hawk at times. We went on vacation and slept in separate beds, but on the last night I got a room with one bed just to see what would happen. He never objected to it and we slept together and nothing happened. I realize it’s not vitally important and I don’t want to ask him. I love him dearly and want to be close to him as long I live, but I just can’t help but wonder. Your thoughts are appreciated. Thank you.