Advice

Hey guys my daughter father has been very inconsistent in her life Every since she was born. He only comes around when he needs something he was coming over to use the car when his car was in the shop and still didn't spend time with our daughter now that his car is out of the shop of course he's been mia he doesn't check up on our daughter he has a son that lives literally in the same area that we live and goes and see him and doesn't goes to see our daughter and also the other bm is pregnant by him again and she's having a girl in December btw but back to what I was saying I asked him for some money to help buy her things and he told me he'll give it to me when he gets it but goes and buy the other bm a 400 dollar vanity and goes to Miami for the weekend I'm just so fed up so I decided to change my number and move on in life with my daughter and raise her the best way I can but just when I started feeling bad I find out that he's back in town and he went to go see him again and didn't care to she Amoura. What should I do you guys ?