The essence of Lingchen and their love are different. He is not really a playboy who only knows how to eat, drink and have fun. He just uses his playboy persona to paralyze his competitors. His various tidbits, seemingly meticulous care for them, and countless ambiguities are all for his playboy persona.
He knew this well and disguised himself well enough to fool everyone. Whether it was his opponents who were watching him in the dark, or his parents and brothers who never paid attention to him, they all thought that he was an ignorant second-generation ancestor.
Intention: You don't rely on me to like you