A girl unfollowed on ig me but liked my old post?

A while ago I (M26) was talking to a girl (F23) on a dating app I thought she was cute but I wasn't interested in anything serious at the time and she was looking for a relationship. It was clear we were not aligned in what we ere looking for but she still asked me out a few weeks later. I was flattered and I think she's beautiful but I politely rejected her cause I really wasn't in a place to do such thing. After a while she unfollowed me on Instagram, so I did the same. After a couple months now she randomly liked my post. What is she trying to do, does she want me to reach out?
A girl unfollowed on ig me but liked my old post?
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