All this points toward Ashi becoming much more important to Jack's story. The ladybug quite literally protected Jack from having his head cut off by her sickle. Ladybugs fly rampant on the island that blind, stupid luck deposited them onto. We've also seen ladybugs crawling about in earlier episodes this season. Jack's never once had a love interest on the show, but he certainly could.
Turning Ashi from sympathetic assassin to romantic possibility would introduce more complications to Jack's de facto immortality and his ultimate goal of defeating Aku in the past before Ashi was ever born. At a minimum it'd at least make sense of their excruciatingly slow burn, but that doesn't mean it wouldn't be weird. For one, Jack's 50-plus years Ashi's senior, and for another, he spent a good chunk of the episode wagging his finger at her while she was chained up in the belly of a sea monster. Ashi's hardly helpless, but the power dynamics at play didn't do the episode any favors. We'll have to wait to see how this plays out.