Obsession!

I know a young fella whom I believe is obsessed with a chick who appears to be movin' on without him.  No matter how much his mother and I tell him to do the same, he just isn't ready yet.  He secretly reads the chick's e-mails, has made at least one, prank call to another guy she's friend with, etc.  Not to mention he's sent me at least two texts, telling me he feels like crap without her.  Love is something.  Obsession is something else!!!  I wish him the best.  And, in time, he'll realize that this, too, shall pass.