Blocking me after break up? Petty?

I broke up with my ex about 3 weeks ago. (Couldn’t keep up with his lack of care& narcissistic behavior) During that time I logged out from my social media& I’ve been taking therapy🧠

Anyway! I logged back in and I realized he still had me as a friend.. I was anxious to unfollow him and delete his pictures.. but I did both😌🙌

The next day I searched him up to see who we had in common that I might need to unfollow… then I realized he didn’t come up. I know he blocked me when he saw I unfollowed him🤷🏽‍♀️

Now I’m thinking.. was he somehow disappointed& hurt or does this look like straight petty behavior? Did he think I’d never go?

Maybe it’s no biggie but My dummy is overthinking😩