Just like Yondu had put into words for Devero previously; Koumyou can't let himself... he can only think of Devero walking away as their best case scenario.

Walking away and finding someone to marry. Someone better. It isn't a high bar, in Koumyou's opinion.

And that's certainly a better scenario than all the gruesome deaths the priest can imagine (and watch, in his nightmares) befalling the other man. Or any number of other fates he's pondered.

But in the here and now...

"...You can always dance with me, Devero," Koumyou reaches up with his other hand to cup his cheek. "My big sweet romantic."