What are your thoughts on this situation?

I started talking to a guy 2 months ago. We spoke on and off and on social media I posted pics of my nephew. He thought I had a child so he became distant and started dating other women. Recently he explained how he thought I had a child. Which led to him seeing someone else. So I clarified that it wasn't mine. He said he came back because he always thinks about me all the time. How should I deal with this?

What are your thoughts on this situation?
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