need advice

do I really need to come out as gender fluid? I am a biological female. I've always been a huge tom boy since I was a kid. if I dress more manly no one would even bat an eye. I'm getting married in a month to a guy I've been with for roughly 5 years. I've never mentioned to him that I feel more manly some days and I'd rather not have that conversation if I don't have to with him. I recently mentioned I want to cut all my hair off after the wedding and he says he won't stop me but would rather I don't cut it because "he's not gay and he likes my long hair". he's very understanding when it comes to me but he is totally oblivious when it comes to sexuality and gender.