"Human exchanges a gold band as a proof of their eternal vow. What do you think us archons have, hm, Morax?"
Morax shuffles, turning to see his fellow archon, his friend... his lover watching the moon outside with interest.
Is it another one of his jest or a genuine question?
For all the years they are together, Morax still can't tell. He props his weight on his own elbow, the warm blanket slides down to reveal his bare skin. With his geo pulsing hands, he reaches to wrap themselves around his lover's hips who is sitting by the window. Barbatos nuzzles at his touch, giggling when his hairs tickle the bare stomach. They have lived long enough to have everything and yet without anything to give each other. Their lives are for their people, their time are for their roles, their powers bound to their duty.
So Morax says, "You are the only one I have ever shown my tears," and that's true. Morax has lived for thousand years and he always struggles for emotion, the delicate and sensitive ones. It took Guizhong thousands to teach him the warmth of having another close and it has taken another thousands for him to be able to shed a tear for the pain accumulated inside of him, a moment of weakness that he can only break to in front of the god in his embrace. Placing a gentle kiss on the palm which is softly caressing his cheek, Morax's eyes gazes lovingly at the other.
Barbatos smiles, "such a heavy proof," slowly he sinks back to the bed, making himself comfortable in the embrace of the geo-infused arm, "then I will write a song that will last for a long time."
So it goes like this. A folksong that has transpired centuries, a tune of Mondstadt and Liyue, a poem between two eternals. The phrase seems to be sung by two people, in banters and in flirts, chorusing in harmony. Children will sing the song innocently as they play and the adults will sing it to their significant others.
The dragon's tear jewel is kept in person, the love song is shared to everyone.