It all started with a necklace!

Okay this is a one shot/maybe a story!! You will choose heres what I am thinking:

You know that necklace Derek always wears in season 3? Well have you wondered how he got it and who got it for him? Well lets say Casey got it for him for Christmas! Did Derek get her something? Will they get together? Or will they have to save the family from divorce? Nora and George are always fighting! Can they get help from Casey's favorite counselor? Is it all a set up to get Casey and Derek together?

Well there you go I really just got this idea! There's a prize first 2 to respond get the first look at the chapter!! And the one that gives me the best advice gets to see it to!! Should this be a one shot or a short story? You choose!!