need to vent

Let me give a little history, my mother in law is erratic. She is mentally not there and constantly lives in her own head. She believes the world is going to end because there are signs everywhere and the illuminati. My husband is a complete mommas boy and would do anything for her especially if she does a sob story. We take our daughter over there every day for weeks during the day since we both work at night. So I let my mother in law babysit my 2 year old for a few hours tonight. So instead of just bringing her home she calls my husband while he's out drinking with friends crying her eyes out because our daughter was sleeping so peacefully and she doesn't understand why she can't stay over. Granted the mother in law has no where for her to sleep and 3 kids under 14 who like to be loud and a husband that snores louder than a bear. None of them are use to waking up to a baby in the middle of the night. So she calls him crying saying it's not fair even though he agreed with me not even 6 hours prior. So I get a phone call from him screaming at me for being a bitch and calling me all types of names, refusing to let me talk and just says fuck of all of you and hangs up. Am i in the wrong ? !