Why did he follow me then unfollow a few hours later?

Well, we used to talk everyday and watch movies together and I was super into him months ago but then we stopped talking to each other. Unfortunately we left a lot of things unsaid between us and he never knew how much I really liked him.

A few days ago, he just asked to follow me on IG and I accepted, but a few hours later he unfollowed and removed me from his profile. I'm so confused.

Why did he follow me then unfollow a few hours later?
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