Hi Doctors, I Find Myself In A Relationship With A

Hi Doctors, I find myself in a relationship with a guy who is very lie and manipulative. He lives with his baby mother who he met after me, I left him for a year when I found out about his baby mother and his living condition, somehow I allow him to convince me to rekindle the relationship. from that point things has gotten worse than how I had left it. He told me to give him some time to fix the issue, because of the baby. everyday it seems more dramatic and confusing. I told myself that this is not what I want for myself yet I cannot find it to leave. Please advice. Thank