First of all, I think when Dylan first started to pay attention to Xinyi, it was because his long-lost sister was also named Xinyi. Slowly, he found that Xinyi was a very kind girl and would not strive for happiness. He wanted to protect her, so he had a lot of conflicts with Ji Cunxi (they should fight in the first 15 episode). Dylan hopes that he can help Xinyi forget her previous pain and let Xinyi find herself again, no longer a post-it note. Dylan hopes that through his own efforts, Xinyi will accept herself and stop thinking about the past.

Second, boys are proud, even if they don't dislike their girlfriends eating too much and getting fat, they don't really mean it. Boys certainly hope that their girlfriends can take them out and make other boys or their buddies envy them.