Beach, I don't like to write people off as morons, so let me summarise why you've annoyed a lot of people on this thread.
You initially claimed that you wouldn't be happy going out with a bisexual man. Whilst some people may have taken exception to that, I could have accepted that you have your reasons for doing so. What made me (and most others) angry was your insinuation that men who have sex with other men are somehow less 'manly'- which most would take to mean strong and courageous. I was once lucky enough to know someone who was strong, brave, immensely warm and friendly, and also exclusively homosexual. By implying that he (and other gay/bisexual men), are 'unmanly', you insult his (and their) memory.
Rather than take that criticism on board, you instead decided to fixate yourself purely on the sexual aspect of this (which is quite minor, in the grand scheme of things). Somehow, you got it into your head that I (and other bisexuals), are just looking for a license to cheat, which I had already emphatically denied, and which is incredibly insulting to the millions of bisexual people who have been in and remain monogamous.
You then proceeded to denigrate any straight-bisexual relationships by claiming that only ugly/desperate women would go out with bisexual men, again this is not true, nor does it have any bearing on my problem. Rather than actually engaging with what was said, you instead gave a number of different reasons why you wouldn't want to go out with a bisexual man. Well, fine, but this thread really isn't about you, and you really don't have to use such crude language. It's not endearing, it's petulant.
In summary, you are entitled to your opinion and preferences. What you are not entitled to do is to derail a thread by spouting your own half-baked assumptions or prejudices.
This may have been harsh, but it was deserved. I hope you take onboard what I've said, and even if it doesn't dispel your prejudices, I hope you can stop making a tit of yourself on here.
(Un)Manly hugs and kisses.