Your bisexuality might seem minor because you are married to a man (and presumably don't see yourself being able to have a sexual experience with a woman), but your sexuality is an important part of your personal identity, regardless of your relationship status. It also seems like it would be stressful to not be able to share that part of yourself with your husband, who is presumably a central figure in the sexual aspects of your life. I agree that denying feelings makes them stronger and louder, and that makes this an excellent topic to explore in therapy.