An acquaintance unfollowed & removed me on instagram, but not our mutual friends

Hi! I know this is a superficial thing to be concerned over, but I can't help it but to see it as a sign of my personality being unlikeable.

Recently I've noticed that a guy that I know through a project we worked over together unfollowed and removed me on instagram. However, he kept 2 of the other people that also worked on this project. What confuses me most, previously he liked all of my posts, and after, neither me nor any of the other mutual acquaintances have spoken/dm'ed each other since. I also haven't really posted anything besides a few pics of nature since we've followed each other.

I wasn't really close with this person during the work, but so weren't the other people we both interacted with.

I don't think I will ever find out the reason behind this, but I would just like to know how to not take this too personally, and whether I should think that I did something wrong.