I grew up in a time and place where it was scary at times being gay. Way into adulthood I had a very real fear of straight men finding out I was gay. It took me many years, and friendships with really nice, caring straight guys to overcome this. I have one close straight guy friend with whom I can talk about almost any sexual issue--he's completely nonjudgemental and actually curious without having (I think) much interest in actually trying it. And I have a lot of curiosity about straight guys--just a lot of curiosity about people in general.
This friendship as well as others have gotten me a lot more comfortable with male comraderie. I'm not really fem or anything, just was always afraid of getting physically hurt by straight guys. (Long story, no I never did but there was a very well known story in my home town . . .) I actually really enjoy male/male friendships and sometimes especially with my straight guy friends because we can talk about "guy" stuff (sex) without worrying about whether we're going to do it or not. The couple times I have had "straight" guy friends seem to develop a crush on me actually became kind of uncomfortable because I wasn't sure what to do. Didn't want to step over the line, but the hugs were becoming, well, different. Other than those experiences, the male friendships where the lines were clearly defined have been really warm and friendly. I have learned that straight guys can actually care about me as a person and not hate me because I'm gay, and I really like that. And we can get past that and just talk about guy stuff, which I really like. I have only one or two friends like that and that's why I started to read this forum. It appears that with a few exceptions, most of the guys here don't care if you're gay or not and you can just talk about "stuff." There seems to be plenty of male empathy, straight, gay, and all gradations in between, and I like that.