Since when has finding a simple metaphor to explain something counted as gentleness? He clearly thought that a normal explanation would be too troublesome…
Nevertheless, Zheng Yichen didn't refuse the "gentleman card" Katrina gave him. In modern society, "good person cards" and "gentleman cards" weren't very useful, but in this era without the internet and somewhat behind in time, these cards were quite powerful and great for racking up favorability points.
Zheng Yichen had quite a few movies saved on his phone, but most of them were action and sci-fi flicks, with some thrillers, horror, and comedies too. As for romance... none.