It sucks that it ended so badly for you. I swore off entertaining straight guys' curiosity because it really didn't feel fair to me. Yeah, it turned out fine with one guy; we fooled around a couple of times, and it was friends having fun sex with no attachment. Other than that one guy though, there's a really creepy vibe around all the guys who identify as straight who come on to me. Like you said, not sexy or exciting at all. And what's in it for me except getting off? I do not need someone panicking after orgasm because they can't deal with the sudden cognitive dissonance. I like to be caring with my partners and all, but that just makes me feel like shit.
It's kind of ironic, but I am a "mostly" straight guy who is in the weird position of having met a really, super cute, younger gay guy about a year and a half ago who I have real feelings for, except that I am pretty sure he is interested mostly in the 7.5 inches between my legs rather than me as a human being, which kind of bums me out.
He's in a committed relationship with a partner (and, yes, I know am a terrible person). But, last night, when we were fooling around, I almost fucked him - he wanted me to - though I just couldn't bring myself to do it, because it felt like fun sex with no attachment (even though, in a stupid way, I wish there were). Even though there is no where for this to go, I wish it it were a little more caring, because it kind of makes me feel like shit. He's going back to his grad school program on the other side of the country in a couple of weeks, and I hope I am strong enough to resist going all the way with someone who just wants me for my dick.