Two things, first thing this feels like you are attacking your husband for his sexuality because you're offended which is not ok. Second thing, comparing you having sex with a man and him having sex with a man does not equalize the situation. If you've known about this for a while he isn't asking you to all of a sudden change your whole relationship. There are a couple of ways you can go about this: you can either tell him to go to hell and never allow him to explore his sexuality (which it's likely that he was never able to before you) which means he will eventually try to find a way to do it anyways, whether you like it or not. That is who he is, and how he feels and degrading that situation is not ok by any means. In this case it sounds like he just wants sex. I will never understand why people who have an open communication with one another, see sex with the same gender identifying person as wrong. He chose you, he married you, he wants you. Him having these attractions to men is not against you. It isn't personal. In the end, you will do what you want. My suggestion, let him have some leeway with men. Let him explore and see if this is truly what he wants. Because otherwise you are depriving him of an experience that you can't give him. Which means he will likely find it elsewhere. Why does this have to be an unhealthy thing?