First things first. DO NOT worry about the faults that he finds in you. When he starts saying stuff about how you're not "fun" anymore, then that's just him being selfish and stupid.
Let's get real here. I'm sure your H wasn't exactly a saint himself. Many of the LBS's here forget that and put the WAS on a pedestal. I'm sure there were plenty of times that he acted in a way that you didn't like or appreciated and you didn't say anything.
Is there a reason why his parents don't like you aside from what your H has said? Here's what I would do: Invite them to certain things involving the baby, but not all. During those interactions, look as if you are the best mother of all and don't mention your H. If they start causing trouble, say, I'm sorry you feel that way and walk away. They may start putting you and your parenting skills down, but don't let it get to you. Get strong.
Your GAL should be about your baby.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.