Ex boyfriend unblocked me, what does this mean?

My ex boyfriend and i broke up 2 months ago and he blocked me. Last Wednesday he unblocked me on whatsapp, then last night (Sunday) he unblocked both of my instagram (old and current) accounts and send a friend request to my best friend on facebook. I am still blocked on facebook. What is he trying to do?
Ex boyfriend unblocked me, what does this mean?
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