You break up with someone, what do you do? Remove them as a friend from every area of your lives, be it your social life, or social networking life?
Or do you show them how much you DON'T care by using social networking to your advantage? Even if you DO care. Too much.
Happy happy status updates, not overdoing it obviously (there's a point where you cross the line from being "happy" to just "unstably mental") - making sure people are uploading pictures of you quite patently having fun, so that it's quite obvious to your former Other Half that you are coping just fine - not mentioning the break-up at all, or how sad you are by it - getting your friends grafiti your wall with comments about pulling other guys so he realises you've moved on.
(Worrying that he will be so convinced you HAVE moved on that even if he DOES change his mind, he won't think he has a chance anymore . . .)
Acting blase if he comments on your status update. Clicking "like" on his own status update, even if you aren't completely sure you DO like it, cos how come HE can act normal when you feel like crap. Even sending him a private message (since you don't text him anymore since you deleted his number to stop the drunken texts begging him to reconsider) to wish him good luck with his next run of the play.
(Forcing yourself not to reply when he actually responds to it. Although constantly THINKING about what you COULD say to appear even MORE unbothered.)
Wondering why he's sent you about ten gifts in a week in Mafia Wars. Is it a guilt thing? An apology? Or is it just that he is so sick of getting requests, he just clicks yes to send you something and stop the messages appearing.
(Wondering why he's STOPPED sending you gifts. Perhaps because he's ran out?)
Wishing he didn't sound like he was happy. Wondering if he is putting on the self-same act, but knowing deep down that is just wishful thinking.
Reading too much into everything. But unable to stop it.
People will probably tell you to remove him as a friend. Sever all contact.
You're not ready to do that yet.
Soon . . . Perhaps.