DH died last summer.
Out of the blue I've had a message from someone he worked with 20 years ago, on FB. It's quite gushy about how wonderful he was, but he was (on the whole 
) and no one ever says horrible things about someone once they've died.
Anyway, she says she just one day felt the need to look him up on FB and was shocked to see he'd died. She told me a nickname he was apparently always known by (which I'd never heard) and said she only actually worked with him for 3 months but will never forget him.
Now, while DH was at that company he had a serious (early, in his 30s) midlife crisis and was reassessing whether he wanted to be married. It passed quite quickly, he apologised and said he didn't know what had got into him, then spent the next 20 years being a model husband and father, but I always wondered if there was "someone". I don't think he actually had an affair, but I do think there was probably someone on his mind.
Her message is all about him and what she thought of him, she doesn't even ask after me or DC.
I'm not going to reply, I don't think. Or should I just say thank you? I'm not sure what for though, she hasn't wished us well!