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" they meet in the bar downstairs. Since he never picks up any of the ladies, they all want to know more about him. Eventually, he does hire one to model for him... and soon falls in love. However, since he's on a limited budget, he can't afford her exclusively, but doesn't want to "share" her with anyone else.