triggers and social media
Two thoughts really, about the letter they send out.
Obviously having someone mentioned to you, who you have no recollection of, but were seemingly familiar with, would be perplexing. But I wonder if additionally, if maybe a person hears their ex's name too much, it might sort of snap them back?
Also, just back then, it'd be difficult enough to contact enough people to make sure this didn't occur, but imagine how challenging it would be now with the omnipresence of social media. "We've deleted all photos of them tagged together, please don't retag"