Their love story could be a movie - boy meets girl, girl is dating another boy, so boy decides to patiently waits because according to him: “I knew I had met the love of my life when she smiled at me". So when the time finally comes when girl is no longer in a relationship, boy makes a point to check in on girl. Girl starts to look forward to those check ins, and the rest, as you say, is history (seriously, somebody bring this movie to Netflix please).