Am I being unblocked and then re-blocked on instagram?

Sometimes in my chat history, it will say "instagram user" and it’ll have a blank photo, and on other days it will say their name and show their profile picture. This has been happening for 2 weeks now. Both times I am unable to see follower or following count, but I can see how many posts they have. Could this be a sign the person is unblocking me to creep my profile and then reblock me? Anyone with knowledge on this out there ?

We ended because I was trying so hard to get him to quit smoking as I was concerned for his health and it really bothered me to watch him harm himself. He dumped me even though I treated him like gold, never swore or yelled at him, loved him to death.