Find and click Edit (or "See your blocked list").
Thus, while no official notification exists, attentive users may detect an unblock through normal platform interaction. facebook unblock notification
I wanted to let you know that I’ve unblocked you on Facebook. I realize things ended on a rough note, but enough time has passed that I felt it was the right thing to do. I’m not trying to force a conversation, but I wanted to clear the air and open the line of communication in case you ever need to reach out. Find and click Edit (or "See your blocked list")
This policy is consistent with Facebook’s approach to most privacy and safety controls—actions are kept private to avoid retaliation, stalking, or awkward social situations. I realize things ended on a rough note,
If you are in the same Facebook group, they will be able to see your comments and posts once more. 3. Step-by-Step: How to Unblock Someone