I'm a little upset because my wife took 9 hrs to get her hair done and hang out with her friends while I was watching the baby.
That sounds like a bit much. Did you really take care of the kids for nine hours?
I didn't watch the kids, I left them for my neighbor.
Seeing as it's your child, don't you think you should be the one watching the baby? Getting upset with your wife shouldn't cause you to pawn your baby off on your neighbors.
It's fine. I'm going to spend the time I would have spend with them relaxing.
If you want to relax child-free, just ask your wife to watch the baby and you can go out to relax. That way you won't have to worry.