Confused!

So I have a 3yr old with a guy that doesn't even help me with her. He rather go out and party instead of helping buy her stuff that she needs. I work full time along with taking care of her. I recently started talking to him again because I found out health issues with my daughter and wanted to know if it ran on his side of the family. Well recently he has been sending me pictures of his friends baby saying that he wants another one and with me. I asked him why he wanted another one with me when he doesn't want to be with me and his response is because he didn't want another baby mother but he never wants a relationship with me. I told him I don't want to be a single parent to two kids and never have help or never have a family for them but he keep saying he wants another kid. What do I do? I honestly don't know what to say to him to make him understand anything that I say.