I will admit I have absolutely no experience with lesbians, and have only briefly known one bisexual woman. What follows is just my opinion. And I’m trying to be
a little inflammatory here, too to drive my points home. So what I say may well be ignorant, prejudiced, and it is almost certanly ill informed. But maybe, just maybe, it’s also accurate…
Okay, my take on this is very simple:
If someone gets dumped, then far and away the most overwhelmingly likely reason that it happened is because the other person in the relationship just didn’t like them.
In short, if a bisexual dumps you and goes back to women/men afterwards, it’s probably NOT because they were craving pussy/dick. More likely it’s because you were just a bad partner. Or to put it slightly more nicely, because of factors about you that are unrelated to your gender.
And furthermore, I think that most of the time, the people who sneer at bisexuals who go to the other gender in their next relationship are actually engaged in a (rather pathetic) attempt to throw the blame for the break-up off on something else, instead of admitting their own role in it. They know deep down that it’s at least partly their fault that the person left. But it’s so much more convenient to claim, “Well, those bisexuals are all evil.”
Again, I don’t have any kind of decent sample to go on, but I would seriously doubt there’s any kind of correlation between bisexuality (or any sexual orientation, for that matter) and ability to stay comitted in a relationship. Some people are very comitted, monogamous types. Others are not. Their gender and sexual preference are, at best, only a peripheral factor in their ability to maintain a commited relationship.
So what you need to look for in a partner (whatever your sexual preference) is someone who has a similiar attitude and intentions in regards to commitment as you do. If you’re serious about the relationship, and the other person is the “flighty” type… well, you’re probably headed for trouble.
A friend of mine (actually, two friends of mine - they were a couple) have just been through this. He was interesting in a comitted, long-term relationship. She went through about three lovers a year. (Don’t ask me how I know…)
I’m don’t look down on either of them for the kind of relationships they wanted to have. But in retrospect, it’s pretty easy to see that their relationship with each other was doomed from the start. The fact that one of them is male and the other is female, and they’re both heterosexual, isn’t terribly important. Given their attitudes towards commitment, it would have turned out the same way even if they were both lesbians.
So that’s my $.02…
-Ben