In love with a narcissists?

So I was dating a guy for about a year . He’s not a stable person. He was married before he has 2 kids w his babymomma. He was always on and off w her . I knew that from the start but we dated and things got pretty serious , I fell in love w him . It was the biggest mistake I ever made all he did was use me and manipulate me he would tell me things and do the complete opposite. 6 months into the relationship he decided one day that he wanted his family back and he left me . I was devastated but just as I was getting way better he came back and promised me the world . He said how he was depressed and in a really bad place at the time and that he wasn’t like that anymore he assured me that he was a different person and that he would show me . I gave him a chance a huge mistake bc he just broke up w me again and got back w his babymomma again . I recently talked to her through the phone and she told me everything about him how she been dealing w him for years how he changes his feelings all the time . How he decides to leave her all of a sudden how manipulates her as well . She also told me how she’s the only one that provides for her family. She pays for everything he doesn’t like working and every time she brings up the topic of him getting a job he leaves her . I also payed for everything while I was w him . I loved him I know I was stupid and when I brought up the job thing he would leave later on . He also likes to act like a victim and blame how he is bc if his childhood. I’m done w him I’m pretty sure he’s a narcissist I did some research and it sounds just like him .