Like Mars Himself, by DevilDoll – Alexander Trilogy – Mary Renault [Archive of Our Own] | https://archiveofourown.org/

While Hephaistion sank into the bed, feeling as if his bones had pleasantly turned to warm oil, Alexander was silent and still, except to sigh.

Hephaistion’s heart, so recently buoyed by love, sank.

Source: Like Mars Himself, by DevilDoll – Alexander Trilogy – Mary Renault [Archive of Our Own] | https://archiveofourown.org/

This one’s just a perfect little gem, sweet and just a little sad.