As healing4me suggested, it just sounds like he was exploiting you and using you. Toxic for sure.

One bright side is that it seems like you avoided an abusive relationship. If you go through and read different stories of abuse cases they almost always say similar in regards to "sometimes he was the sweetest guy in the world" - this is what kept them coming back to their abuser. I'm glad you seem to know now that this is clearly him manipulating you and you put and end to it. Now you just need to keep him out of your life.