Okay damn. This is one of the most accurate depictions of love I've seen in a manga. You don't get over someone that easily and you don't fall for someone that easily too. Life's complicated.
I think the reason why they extended the manga is for it to have a proper anime adaptation. It might not have been given one if it ended when the 70th chapter came - about 4 years ago.
Lol its following what I predicted. It has to be Mizuhara who has to convey her feelings to him. Because now she knows what he feels. She has to understand her feels too