You would be oh so wrong.
Over the years, I have managed to latch on to several guy friends who I do dating-like things with; but never, ever, ever the actual dating thing. In times of singleness (of which I've had my fair share), its nice to have a guy friend or two who you can go on lunch dates with, grab dinner with; sample beer with, see a concert or the ballet with... (ok, I've not made any of them go to the ballet. Shit. I've never made myself go to the ballet!)
But now, its a bit different because I'm no longer single. Going on a not-date with not-boyfriend while the actual boyfriend is sitting at home was a bit strange. And while there are guy friends who are definitely just friends, this one used to be someone I thought I wanted to date. For only an insta-second, I swear! Disastrous things happened when we actually talked about dating and we ended up not talking for several weeks. Eventually, we figured it out somehow and went back to being friends. But still... there is a weird vibe sometimes. And seeing Dave Matthews together doesn't much help that weird vibe. But, him annoying the crap out of me by singing every single song out loud? Yeah... Made me pretty glad I'd be coming home to the professor.