Given how this manga has progressed up to this point, and the skill at which the author has woven this sweet love story, it would be incredibly strange if she fumbled the ending.
This is just tension. I really like the fact that it's so realistic. Most other manga would have them resolve...
People will complain about this arc and say we need to go back to the main couple just to see another chapter of Seto pissing his pants and crying because his girlfriend wants to hold his hand lmao
It's tough with these types of stories sometimes because they all seem to get to a point where the original hook can't carry the tension/plot by itself anymore, but you see authors sometimes just whiff on plot drivers outside of it.
Really enjoyed this story, but the ending is so sudden. After the jealousy arc, everything just felt so rushed and the conflicts forced. Feels like 4 different arcs were crammed into 3-4 chapters. Bummer for such a great story.
MC has a perfectly rational, principled and normal response to the situation, but the world, characters, and plot insist "nah man, sorry. You have to fuck the underage catgirl, that's the rules, we don't make 'em".