Had a similar incident after someone I thought was my friend turned the creep factor up to eleven and I removed and blocked them for their behavior. The second I had the courage to clear out my block list and change the name of that character a year later I got an instant message from that person, making me decide to shelve the character once more rather than allow that person to track me unhindered. If I remove someone or even block them, I shouldn't be on their friendslist anymore.