DH lived in Italy a long, long time ago. DH got to know a British guy there who it turned out was very good friends with very good friends of DH's in the UK. To cut a long story short it soon became apparent that this chappy was completely self-absorbed and therefore incredibly tedious to be with. However, DH ended up seeing him fairly regularly due to their joint friends travelling to Italy periodically. I've also met this man on several occasions, again through joint friends.
Now DH has been back in the UK for a number of years and Self-Absorbed Man is still in Italy (but has family here so may one day come back!), and there's been no contact between us. All of the sudden, out of the blue, last month he got in touch with both of us via Facebook. We've been ignoring his friend request for several weeks, but every time I open facebook I see his photo and his ignored request, and yes, I feel guilty for not responding to him. DH is still in touch with their joint friends but would like to cut off contact with SA Man. (This is beginning to sound like a teenaged problem page!)
I'm interested to know how MNers would handle this - the more views the merrier!