Mamoru wanted to wear his green jacket, orange pants and neon green crocs to his wedding. Usagi almost cancelled everything then Rei put fire in it and Mamoru had to use a normal outfit

Mamoru: I wear a tuxedo EVERY day, I need to wear something *special*

Usagi: We’ve been together long enough that I know “special” means “colors that can be seen from space”

and that’s why she called off the wedding in the PGSM special