He's not good at expressing his feelings.

It turns him into a blabbering mess—which, fueled by some deeply hidden anger issues—often leads to actually insulting the people he cares about. So he observes, listens, fishes out details and small things about his friends and family, only to use them to express his love.

"Enjoy, you little shit." Jason scoffs after chucking a bar of Hershey's into your face, startling both you and Tim, whom you had mentioned your candy cravings to earlier.