Everytime I read the comments I feel the tsundere energy of a ocean of readers.
They are like-" Fu** the author he a cuckhold, Fu** Kazuya just roll over and die"
and yet....at the end they are like-
"Fu** you guys too, let's read the chapter next week, I will be early"
Just admit you guys like the series already you cheeky BAKA
P.S- Kazuya has grown significantly..what do you expect him to suddenly propose or force kiss her coz that's not how you get a girlfriend in real life. And yes, any other manga she might had accept but this is the most closest or actual reality based world. Their relationship would end badly awkwardly in an instant before even it starts.