Bisexuality Support Group
Bisexuality is a sexual orientation which refers to the aesthetic, romantic, and/or sexual attraction of individuals to other individuals of both their own and the opposite gender or sex. Most bisexuals are not equally attracted to men and women, and may even shift between states of finding either sex exclusively attractive over the course of time.

I have been to events for bi/gay men where I was the only one truly out as bi and had to field a lot of stupid questions. (Yes, I am bi. Yes, my wife knows I'm here. No, I will not be hooking up. No, it has nothing to do with being married to a woman - it's because I'm married, period. Yes, again, I DO belong here, thank you.)
The most outrageous comment I ever got was, "You're just bi because you haven't met the right man." That was SOOOOOO hypocritical. It would have been like if I told that guy, "You're just gay because you never met the right woman."
Regardless of where they fall on the sexual spectrum, people can be wonderful or they can be asshats.