Is he just playing games?

Idk what to think honestly. Basically this guy and I have had a really on and off unofficial relationship for a little over a year now. We’re on and off because he ends it and then comes back. The last 4 months, we were starting to get more serious about each other but it was getting really toxic on both ends so he broke it off. Then 2 days later, came back again and wanted to work it out. I took him back and it seems better and more serious these last couple weeks I guess. He doesn’t get jealous anymore, he communicates more, he gives me more attention, he acts healthier, etc. Yesterday he even took my kids and I to a park and played with them. They loved him and he was really good with them. My youngest even cried about having to leave him. But then after, I was talking to him and I started to just get this feeling of like “why am I doing this?” Because we were talking and he basically said that he likes spending time with us and is really interested in me. But that he still feels like he wants to work on the unhealthy parts of our relationship and give me time to fix myself too (I have bipolar that I’m trying to manage better) before we try. I said something to him about how if he really liked me as much as he says, he’d do it. But he says he doesn’t wanna try when it’s not right still and how he wishes I saw his POV more. I started to get excited when I saw the kids love him. But now I just feel like it’s part of a game to keep me locked into him and that this is never going to go anywhere.