Single mom

I lefr baby daddy a week ago and he still hasn’t made an effort to do anything. He is just talkinf to girls and going to party’s all the time now. So I took him off birth certificate and changed her last name. He told me last night that we aren’t done for good and that he is gonna do counciling and stuff. But then I hear he’s telling everyone that we are done and he’s trying to have other people set him up. And I just feel he is feeding me with lies. He isn’t aware that I changed her name and stuff. So idk if he’s just trying to be nice to me so I don’t do it. Because I have 30 days to do it. Or what. I just want him out of our life’s. He causes so much pain and ache. He hasn’t stepped up as a father at all. And she’s over a month old. What do I do? Block him? Wait till he’s over this stage of partying in about 3 months we have been thru this last year same time. And then he came back in January. And the year before that same crap. Help ladies.