He got paid to call her fat and old and make a basic-ass salad
this whole manga was all about it. It keeps repeating the same thing: There's this chef who gives ppl an attitude but still gets invited over. Customers paid large sum of money expecting luxury meals but they'll get something plain in stead. But that meal will make them recall moments in their life, or he'll say something in the end and make them think. This is a very slow-paced manga.
This is the type of manga you either get it or you don't. While it's safe for everyone to read, the manga is more adult-oriented especially for ppl who 've been working, fell in love, broken up ,etc. People look at a situation and deal with it differently. Therefore really nothing to discuss about it. The manga ran for 70+ volumes and does have alot of fans here for a reason. Right?