Uh, I find the OP question kind of problematic because you say you can 'tell/feel' that he keeps looking at you, but also that he looks away whenever you look at him. So there's a sort of paradoxical observer-observed thing there; you could just be imagining that he's looking at you all the time, and every now and then he happens to look in your direction and sees you looking at him, and he looks away and wonders if you're the one staring. It's very difficult to accurately report on what someone else is doing when you aren't watching them, and when you are watching them that very act can influence their behaviour. So there's that.
But what I find stranger is this almost unanimous sentiment of "it's the gym! no sex thoughts at the gym!" Which sounds an awful lot like over-compensation and macho posturing. Are we so insecure in our manly manliness that we feel the need to suppress one of the most basic, fundamental human drives (that would be sex) as soon as we step into the gender-charged theater of "The Gym" so as not to appear
to confirm the whole "homos can't get sex off the brain" stereotype? Because that smacks of that old favourite-- internalised homophobia. It's almost formulaic: a gay guy goes to the gym, and he wants to be taken seriously and not dismissed as "the gay stereotype." So when he gets there he takes every narrow-minded heterosexist bias against that stereotype-- including the idea that we're sex-obsessed (as though straight people don't think about it just as much)-- and plasters it over any sexual thoughts or attractions he might experience while he's there. The only thing more ridiculous than the self-censorship is how it necessarily implies that the straight, 'masculine' alternative is some kind of mental chastity.
My straight (and hot-- god damn! in a heartbeat
, I tells ya) trainer at the gym and I talk and laugh every now and then about this very kind of shit. We lampoon it. One time, he made kind of a joking flirtatious comment-- we were talking about scheduling changes with him and my chiro guy and he said "oh, so you'll try to squeeze me in
before Jay, huh?"-- and I said "dude! Here I am, here to work out, I'm just trying to be one of the guys, and you gotta go and gay everything up on me.
" Another day it was "you ready for me to stick my ball between your legs?" (my reply once I stopped snickering-- "I won't tell your girlfriend if you don't tell my boyfriend," which set the girl next to us laughing too). Just the other day he said something else while I was laying face-down on the leg curl bench, it took me a minute to get it and he started to backpedal, and I said "oh, no, I caught it just as you were pulling it back." Cue a laugh about pastor-recommended contraception. Another day he agreed that there was lots of eye candy at the gym (albeit of a different type for him) and that it would be embarrassing getting wood while trying to spot a girl on the bench press.
The point is, the heteros are "in on it" even if some of us aren't. Acknowledging the ubiquity of human sexuality isn't a gay vs. straight 'thing,' it's an 'aware' vs. oblivious (or in-denial) thing. People don't check their hormones at the gym door, and it's a good thing too because the testosterone that makes us wanna fuck at the drop of a hat is the same testosterone that promotes male muscle growth. The chaste "working out is Pure" mentality is a put-on affect, conforming to a social expectation that isn't even realistic. It's a delusion to think that the gym threshold projects some magical 'anti-sex-thoughts' field. It's a joke, and lots of heteros are keen to it and will laugh at it with you if you stop doth-protesting so much. I mean, you really think that the straight guys at the gym aren't peeking at the girls in their tight little outfits and having dirty thoughts? Don't be retarded.