Grow up and be a husband and father to the family and life you chose. I love to dance, but I married a guy with two left feet because everything else was worth the sacrifice (and yes, we've had lessons, he is one of the weird few who truly can't feel/hear the beat). My life has been so wonderful with him, I couldn't even imagine telling him I have the "need" to go out and dance with other men.

If you really need to "dance", then get a divorce and do whatever a single guy would do. Because you can't be single if you're married.