I disagree. Crushes are NOT normal when one is married. I feel sorry for your wife. It is not fair to her that you are slipping around already cheating in your heart with another woman. Unless your wife is having secret affairs as well and you have some sort of open relationship. Somehow I doubt this. You want your cake and eat it too. You use bipolar and mania as an excuse to cheat on your wife when in actuality you just want that other woman. I've been hypersexual and manic many times and I never once thought about cheating. Why don't you use your sexual energy in your own backyard with your own wife? Maybe you shouldn't be married if you can't stay with one woman. It's not fair to your wife. There's no shame in that. Not everyone's cut out for monagamy. Maybe you're a circle trying to fit into a square hole; it doesn't work and causes much suffering for all involved.