I dunno - I know for me, I have a lot of friends at the pub. In order to challenge my drinking, I have to cut out the pub. Not just my favourite drinking buddy. I can't say "I'll see my other friends at the pub" - the temptation is still there. (Now I need a drink just thinking about the trauma of giving up the pub.)

Could be there was another - but could be he's cutting off temptation as much as possible, knowing that FB was where he went wrong in the first place.