How is one related to the other? If it is true that he wasn't as close of a friend with the guy as he thought, what does that have to do with facebook? Without

How is one related to the other? If it is true that he wasn't as close of a friend with the guy as he thought, what does that have to do with facebook? Without facebook he might not have had any interaction with the guy at all. How does quitting facebook help in that situation? I know in my situation there are lots of people on facebook that I wouldn't know anything about what they were doing if they weren't on facebook.