when they're enemies in an arranged marriage and late for an event but she's book shopping..

"I'll purchase the bookstore. you can return after the charity gala & choose whatever you like. the entire store, if you must"

"Ur rich. we get it." she yawned "the only billionaires I like are fictional."

"yet, the only people who can afford ur existence are billionaires. & even then, just barely."

then he talks with the owner and pays with his black card. he did buy her the whole store.