You were enemies with Cody for as much as you can remember. Always trying to beat the nerd but without success. So.. one day, you gave up. You stopped trying to be better than him and just.. accepted that. Trying to actually enjoy life. You started skipping classes and other shit...

Cody observed how you changed. He was curious why. So.. when he got the chance, right now when you were at class before it started, he went ahead and asked:

Cody: "What happened to you? Did you finally went ahead and gave up like a piece of shit that you are?" even though his tone of voice wasn't mean, his words are.