Am I mad that he could be interested after all this time?

[pumpkinbump]

I posted this in chat but thought it may be better here.

Broke up with ex in 2015.
Dated a man a few times, went well. I was pretty messed up from the previous relationship (I know I should not have been dating).

Got back with ex, then had my daughter 2.5 years ago.

Split with ex when she was 2 months old. Very long story. He was an arse.

Didn't speak to man for a while. He popped up on WhatsApp one day, a few months after my daughter was born. Had a general quick chat. Told him about my daughter. He actually said it changed things for him (weird).

Since then he has been in contact periodically. He hints that he still likes me, and about meeting up. Not sure how serious he is so I take it with a pinch of salt.

What would you make of this?

That's the weird thing, I know I don't know him inside out, but he isn't like that as far as I know. After one of our dates, he came back to my house and nothing happened. It could have if he wanted. I'm not invested in him, I'm not even sure I want a relationship right now as I don't have time with my daughter, just posted to see what others thought. He says he has dreams about me, not dirty ones. I've just always had a feeling there was possibly unfinished business there with him. When we started chatting again after I broke up with my ex he says he wished we had given things a proper go.