Plots similar to Love Playlist S4's side couple

Just finished Love Playlist S4.
https://mydramalist.com/34188-love-playlist-season-4

I liked the storyline of Park ha Neul and Seo ji min. Wonder if there are any other shows with the same plot. He originally likes another girl but she likes him. She found out that he likes the other girl and decides to take a step back but he likes her back.