Many bisexual males ultimately opt for traditional marriage, which is usually to a straight bride. Many of them keep their sexuality secret, in some cases their entire lives. A growing number are telling their prospective wives about their bisexuality, which is often shrugged off by the woman, only to rear it’s psychologically intrusive head further down the road. This problem is related to society’s overall attitude toward sexual diversity.
The following is a typical scenario
BY Sasha, From Eye Weekly.com
I thought your take on why so many people believe bisexuals to be less monogamous was thoughtful and interesting. However, as someone who’s been in long-term, monogamous relationship with a bisexual man, I think you missed the real reason for these insecurities. I thought I was completely fine with my boyfriend’s bisexuality but what started to gnaw at me after a while was the fact that by committing to me he would never be able to enjoy that other side of himself. Sure, I could give him all the vag in the world but I could never satisfy his desire for cock. It creates an insecurity that really is twice as dramatic as a heterosexual couple. Where before I only had to worry about women hitting on my man, now I have to be worried about guys as well. Not to mention that the longer one goes without something, the stronger their desire for it becomes. I’m not saying these fears are rational, but it’s where the mind goes sometimes, especially when trust is not a strong part of the relationship.
He can’t just turn off his attraction to men – I mean, can he really ignore those feelings forever or as long as we’re together? I think it’s more about feeling you can never fully satisfy your partner and for many, cheating is the next logical step in that equation. Cristy

The Reply:
You bring up a salient point about how, when we pursue a traditional relationship model with an atypical partner, we behave as though we are entitled – obliged, in fact – to feel insecure. Andrea Zanin, who conducts workshops internationally about non-monogamy, speaks to this tendency eloquently: “Most of us are raised within and completely immersed in the institution of heterosexuality. By this I don’t mean the sexual orientation per se; I mean the paradigm that has us all believing a certain package deal of sexual and gender-related feelings, identities and behaviours is normal and right. Within that paradigm, the prescribed set of behaviours is more or less as follows: you are appropriately gendered for your sex, feel sexual attraction to people of only one sex/gender (the ‘opposite’ one), engage in monogamous or serial monogamous partnership with such people, marry, reproduce and so forth. Sometimes we encounter people or situations that fall outside that paradigm but as long as we can normalize them, we can sort of incorporate them into the paradigm so that they remain comfortable for us. So for example, if your guy likes other guys, that can be seen as something that makes him unique or unusual, but you can still be ‘fine’ with it as long as it doesn’t disturb the rest of the package deal. The problem is that sometimes those unique or unusual people or circumstances are just a bit too hard to normalize, for whatever reason, and that causes us a great deal of anxiety.”