
He is rising that child minded dragon properly. It's good to see even after knowing his powers he's treating hyo-un as a younger brother/child.
Hyo-un being attracted towards him is literally not his fault.
It's natural for a dragon to choose a mate in this trope. & He is doing that unconsciously which is inspiring that growth spurt.
That transformation...how did I forget his massive body & all...welcome back adult hyo-un ⁄(⁄ ⁄•⁄-⁄•⁄ ⁄)⁄
Also people downstairs maybe right. He didn't had the time to give that orb. So maybe he went to sleep knowing that his mate will be reincarnated again in present timeline.