It floods his heart with joy to see her beam when he leans into her touches, which only makes him want to do it more. A feedback loop of affection. He loves to give her affection in turn and see just how wonderful of an effect he can have on someone, on how he can improve someone's existence by being physically present.

Era shifts in such a way that he knows what she wants without voicing it, and he reaches out to pull her towards him. "Aye, but betrothed sounds cooler."