It's wrong not to say sorry for your wrongdoings.
James is meeting his cousins for the first time since they were kids.
James wants to make a good impression on them.
James apologizes for candy he took from them when they were kids.
James says hello to them, they mention candy he took decades ago and James denies everything.
They accept the apology and consider that maybe James has indeed changed.
They like James even less that he continues to not tell the truth.