Well, hugs to you, but you know that you probably feel used because you WERE used. This guy has shown you what he's like a number of times. It's up to you whether you prefer to believe what he's shown you, or continue to like on hopes and lies that he spins.
You have a daughter. Is this the kind of person you want in HER life? Someone who uses others, lies and steals? You both deserve better, but you're the one with all the choices. She doesn't get a say. Please, wake up to the reality of the situation, and choose NOT to have a heroin addict boyfriend around your child. You can show her how to have some dignity and self-respect, and not allow yourself to be mistreated emotionally. She is watching you and learning from you. Is this the kind of relationship you want for HER in the future. If not its time to draw a line and refocus on her.
If you have a tendency towards finding yourself with this kind of man it might be time to try some recovery work of your own. CoDa, AlAnon or (If this could stem from coming from a dysfunctional family background yourself) ACoA are all free and available to anyone who wants them.
I hope you will choose better for you and, most importantly, for your daughter.
BB