Ah, I see. I have read the novel years ago, so I am sorry I have forgot a few details.
I think this happened because we lost Cale's monologue. He looks joyful but we all know he has another plan in his head, and webtoon dont include this much. Unfortunately.
For the long hair, I think it just mentioned in novel after 3 years skip? Isn't it? So looking here for the hair slowly longer feels nice.

Sorry to say this, but that is not the cale I know (〜 ̄△ ̄)〜