Are you sure that your desires to be with another woman isn't just "sexual appetite" or "lust"? There are many reasons for attraction to someone. Perhaps it is just that you want to need something specific from women that you can't get from your husband.

I ask this in all honesty because I personally am bisexual, and have been married to my wife for 18+ years. Sexually I prefer men, my first sexual relations as a teen were homosexual. I find sexual intercourse with my wife (and women in general) to be complex, stressful and anxiety filled...whereas with guys is easy, smooth and exciting. However, my life is much more than just sex and I am so much more fulfilled with my wife and family. Sure, she doesn't have a penis (which is what I want), but she is more.

I guess I just want to make sure that what you want is actually more than just sex, and that if you were to leave your husband for a woman, that you would actually be getting more. Either way, you should be honest with your husband...if you have these thoughts and desires, even if don't act on them you should probably tell him you have them. I told my wife three weeks into us dating that I was bisexual and we are still together.