Because you didn’t say which type, I’m just gonna do a forest elf head-canon.
– He always brings you flowers. And never the same type, unless you absolutely adore them. They are self-preserving so they can be replanted or stay alive in a vase for a long time.
– Long walks through the forest. Speaking to the trees and having him tell you stories of long since passed people and cities.
– Song birds lulling you to sleep. If not them, then he sings ancient lullabies as he runs his fingers through your hair. Kissing your forehead as he rests his head next to yours.
– He also likes to braid flowers into your hair. Even if you don’t have long enough hair, he’ll make a flower crown for you to wear.
“My little royal lover. I am forever stunned by your beauty. I am yours for eternity.”