I don't know what to do about my daughters dad?

Without all the back story... Basically my daughters dad works under the table doing tattoos, he will never pay child support, and he lives off of girls that he meets. Hes been with one imparticular who is a really nice girl and doesnt see through his bull sh*** right now. He wants to see her on weekends and never gives me any money, or buys her anything she needs to help out. I let him see her because she has fun with him and I dont want to deprive her of anything. But its SO much drama dealing with him. Like today he was supposed to bring her home because she has school in the morning, and he calls and says I've been busy, but I pomised her I would take her to the carnival, so can I bring her back tomorrow? He says one day of kindergarten isnt that important, and told her that too, she left me a message saying I really want to go to the carnival and I dont wanna go to school its not that important. So he makes me loook like the bad person if I make her come home. I just cant believe hes pushing his iresponsible ways of not getting a real job onto her by telling her school is not important. And putting me in a bad position. I raise her alone without any help, he will just always run from the child support... But I dont want to depive her of him, but I cant take this anymore?! Any advise is appreciated....