I have to admit i have little patience for people who are immature. You took your kids to a family wedding and your wife is pissy because she doesn't like your family? Could that BE more immature? It's a FAMILY wedding. Get a grip, woman.
On the other hand, I understand how a wedding can be an un-fun experience for you (or any of us in our situations). I'm convinced the bar is usually for those with struggling marriages.