What does it mean when a guy unfollows you on Instagram and then requests to follow you again?

I don’t think it’s cuz he wants followers because after he unfollowed me I didn’t unfollow him back. So following me wouldn’t make a difference to his follower count. He requested to follow me back a week after he unfollowed me.
What does it mean when a guy unfollows you on Instagram and then requests to follow you again?
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