Sad mad and confused

Okay lady's no judgement please I been with my fiancée for 11 yrs he's been using herion now for 5 years I'm surprised I haven't lost him yet he promised once our little girl got her he would get clean for both of us but mainly her well he's still using and it hurts me bad I don't know what to do I have no family or money to leave him we currently stay with his parents and they don't know he uses I know because he don't get the herion he gets nasty he just told me that he don't give two shits about me only the baby well if he actually cared about her he would get a job and support her and be clean for her. I love him a lot I mean more then I can explain he's hurt me mentally way to much I don't know what to do.