I never really thought about it before, but the moment when Wilfried had the "What... I want?" moment made something finally click: Ever since his birth, Wilfried only ever lived out what others had planned for him. This is the first time in his life, when he is allowed to pick his own path.
He was caught and torn between what other people wanted of him, apparently not even noticing that he was only working and struggling to meet other people's goals for him, without even knowing what he himself wanted.
This makes his constant flip-flipping between good and bad, obedient and rebellious a whole lot more understandable and also why he is so easily influenced by others.