i can tweak it if this doesn't work
[ never underestimate mamoru's ability to hit the nail on the head without even aiming for it. he doesn't enjoy being right about something being wrong, especially as his stomach twists unpleasantly at the sound of her crystal hitting the table. whatever he suspected, it wasn't this.
for a long, horrifying moment, he has no idea how to fix this and even worse, doesn't know if he's able toβ but then a warmth radiates in his chest, reminding him of newfound power he's had within him all along, power that he could perhaps lend to her the way he unknowingly did with usagi countless times before.
he reaches out, covering it with his hand, willing his power into the crystal, urging it to come back to life. when his touch finally falls away from it, the crystal, while not as effervescent as it ought to be, has taken on a rosey-gold color while infused with the power of his own crystal. ]