Cheating is cheating no matter what sex its with. Nothing wrong with being bisexual. You should definitely talk to your husband first. Since you're married Im assuming the two of you were attributed majorly at one point. You could of possibly gotten bored with the routine. And he may be bad cuz he does the same things that he might of originally thought turned you on and that you enjoyed. Try discussing the topic and research different ways to spice it up. If that doesn't work, there must be other obvious reasons why your marriage isn't working. If you're unhappy your attraction for him will grow less and less.