Not super happy with my marriage

I love my wife and she loves me, but our relationship is more friends than partners. Mostly I'm happy with my wife but she and I have no physical relationship anymore. She has no interest in having any kind of physical relationship.

My question is, as someone who is 39, has two kids, is in decent shape but is balding and probably just okay looking, would I have any chance of ever having a physical relationship? I would hate to separate from my wife just to be single for the rest of my life.