could it be a Black Waltz?

waiting here -- all of them were waiting untill you fought them or something
anticipating twilights end -- the end of twilight is like the beginning of darkness
in hope of finding love -- they were helping the queen get garnet
fighting sickness -- sickness as in mistakes from the other waltzes

void was my brawl;
it drenched me -- I think that semi-colon is there saying the emptiness drenched 'me' as in Rantzien was wet drenched from the emptiness of that bit because he might've not liked it.

So my guess is the Black Waltzes