The World of Suzie Wong (1960)

Robert Lomax tired of working in an office, wants to be an artist. So he moves to Hong Kong to try his hand at painting. Finding a cheap hotel he checks in, only to find it's used by prostitutes and their 'dates' who meet in the bar downstairs. Since he never picks up any of ladies, they all want to know more about him. Eventually he does hire one to model for him, but soon falls in love. But, since he's on a limited budget, he can't afford her exclusively, and doesn't want to 'share' her.