Facebook Rash
A person who comments on your Facebook posts like they're your ex and you're still in love with them.
You posted a picture of your vacation? I'm going to comment 'I wish I was there instead of you.'
You changed your profile picture again? I'm going to comment 'That's not your face, that's my face.'
You posted about your new job? I'm going to comment 'You're still not as good as me.'