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So uh Eddie took Buck on a surprise date to a poker game where Buck showed off his math skills and Eddie looked one step away from proposing, they won premium cut steaks, Buck then made a steak dinner for Chris after baking with him for his school's bake sale. All of this was canon in an episode called Mixed Feelings which was about families where Buck's first step after discovering math powers was to sit with Eddie and Chris over Chris doing homework. This happened. In canon.