He is an a-hole. You need to protect yourself. Have you considered an attorney and getting a temporary custody agreement/legal seperation? That takes care of the whole thing.
Do you really want to be trapped in a car with him? I can guarantee there will be no cheap flights this close to Mom's day.
Me: 44 S: 17 and 7 Final-6-13-08 I once went to a psychic who told me I would soon feel cheated......