Subpar plot, wonderful music and acting

I loved the acting and soundtrack, definitely going to download the music, but the drama went downhill after episode 13. There are too many plot inconsistencies and the show is confusing from start to end. A lot of questions were never answered and the ending was open ended. It feels like the writer/s gave up the show. I refuse to believe they got together. The FL remembers everything and that would be revolting if she still started dating him knowing what she knows. I wish the story had been told better.