Yeah, I guess I have. My advice is to back off, but still be the sexy you that you are. Pretend you are dating and don't see him during the week. If you only saw him on Saturday night, you wouldn't even know this exists.

When he comes home from work, you look good, you're cooking dinner in a sexy, little outfit, his favorite beer is in the fridge, and you set out a little hors d'oeuvres, nothing too much, maybe just chips and salsa, or hummus and pita, but something. This encourages him to sit in the kitchen and talk to you while you cook. Maybe you have a glass of wine or beer while you fix dinner. Keep the conversation happy, about kidlet, ways to further organize the house, your work, whatever. He may be losing her, but he won't even notice because life at home is good. You distract him from sad thoughts by being the happy, pretty one flitting by around him.