The suggestion is so Ilda that Yato can't even point out to her that if it had been, this would have been over long ago.

"No," he replied instead, beckoning her to follow and sliding his hands into his jacket pockets. "Besides, I'm not sorry for having done it. And even if it weren't for that grudge of hers, Bishamon would still have issues with me - wrong kind of god and all that. Let's just focus on how to keep her attention elsewhere, okay?"