G.K.
Gee S.,
This is a tough one. You're going to have to see what people say. Best I can come up with for now is this. Get a terrific babysitter (something you'll want to have in the works anyway)and go with your husband on a date. Spend the night seeing things HIS way. Perhaps he is experiencing jealous feelings toward the baby and feels he shouldn't have them, so he's covering up best he can. Hopefully, as he feels safe with you, he'll open up and get his feelings out. REMEMBER, see it HIS way. You want him to be understood. I hope he'll feel safe enough to see a family counselor with you. A therapist who can take BOTH your sides (word of mouth or best you can get with your health insurance). Babies can churn up unresolved childhood issues in new parents. All of a sudden, a parent might feel they've become their own parent! Perhaps your father-in-law is similiar, but zip it as you observe!
Good luck, S..