Need a recommendation where the FL thinks that the ML likes her, he treats her kindly and she perceives his acts as signs that he likes her, but in reality he doesn't like her and rejects her (or she might also see him with someone else). She thinks how stupid she was to believe that a person like him would like a woman like her (preferably she's inferior to him in something) and has flashbacks with a sad tune playing in the background. And later he falls in love. 

any country is fine actually as long as the show's ratings are not too low, for example I also watch hindi tv-series. Not necessarily a tv series, it can also be a movie

ML treats FL kindly at first or always, distancing themselves in the middle because of love and life matters, ML later falls in love, ended up together after all problems is solved:

Hidden Love (FL thinks ML dates another girl, ML treats FL like a younger sister)

My Cherie Amour (FL thinks ML likes his brother in-law's younger sister and even helps ML to get SFL)

My Forever Sunshine (ML dates another girl, ML rejects FL, FL falsely accuse ML of sexual assault which indirectly caused ML's car accident and broken legs)

Unrequited Love (ML dates another girl who takeover/lies about being the girl ML love; FL)

You Are My Glory (ML rejects FL because he thinks they're not a match as FL looks shallow and has no goal/ aspiration whatsoever (men heh, but it's Yang Yang) even though she's smart and hardworking, and also because at that time ML iirc likes/ dates another girl)