Here are some stories for you with the same dynamic (Break up -> regrets), some may make you cry, but there is the drama you're looking for
- https://www.mangago.zone/read-manga/loss_time_ni_hanamuke_o/
- https://www.mangago.zone/read-manga/this_ending/
- https://www.mangago.zone/read-manga/life_senjou_no_bokura/
- https://www.mangago.zone/read-manga/escape_journey/
- https://www.mangago.zone/read-manga/dark_heaven/
- https://www.mangago.zone/read-manga/driver_s_high/
I love loss time is really really well written and the story is so beautiful I was about to recommend it and the i saw it in the list you should read it
someone please give me more stories like this one i love dramas