One of the posts I noticed that he'd looked at was one that he posted..his phone number. Also, he accuses me of cheating, or wanting to, and he's tried to trap or entice me by pretending to be someone else, with a different email address. Of course you have no "proof" that he's actually engaged in sexual activity with anyone else, man or woman, but you two aren't really experiencing a monogamous relationship if he's actively sexual with men. You say your sex life is great..that's apparently true for many bi-sexual couples or poly couples. What's up with you that you'd put up with this for two years? I have thought about leaving him, but I think there's something more going on with him..a personality thing. I'm trying to gather some money to go see someone, and hopefully get him to go with me.
When someone has this level of deception and manipulation, it is much more difficult to have open, honest communication that lasts.
I find just talking to someone helps you to see things a little more clearly.
He wants to have sex with men for the same reason you want to have sex with men: he's ATTRACTED TO MEN.
I'm fully aware of what is going on, how, when, where, etc. It was one of the most frustrating aspects of the whole process for me.
I'm not blind or stupid, I just want to know the "why." I'm an attractive woman, good at sex of all kinds, open about needs/wants/desires. All you can do in the end is respond to the actions of your partner even though you don't understand the motivation behind them.