That sounds exactly like my ExW (not my current W). She would leave our D7 home alone so she could go out partying. I remember one time, my D7 (she's 18 now) called me and said that she was getting up one morning to start getting ready for school and her mom walked in the house wearing no shoes, she had been out drinking all night and came home drunk at 6am.
I called child protective services and they said I would have to prove my ex was out all night, they couldn't just take my D7's word for it. Thankfully my D came to live with me soon thereafter.
I wish I knew why people do what they do, including leaving their kids home alone at night to go party.
