I am very close to a person who has disturbing behaviour and I need some objective comments concerning it. This person sort of takes over the friends and personal information of my friends and family.
He sort of 'worms his way in' to personal information of others like he is an old buddy of theirs, like sharing in private jokes, etc. It is sort of like he is living on the coat-tails of others and it is very disturbing to be around him now.
What makes a person do this? No life of his own? Does this behavior have a name? Comments, please.