This is exactly why I gave it a 6.5. I was very invested in the main couple until the last three episodes. There was no reason for the last plot arc at all (except they needed to do 16 episodes, and had to drag the story out somehow). They already basically got together as a real couple in episode 11 without any toxic behavior. I would have given it a 8.5 or a 9 instead of a 6.5, if they would have let the story end naturally without the contrived last plot arc where the FL acts very annoying and toxic.
The drama also made fun of drama cliches at the start, but the ending was full of cliches.
The drama also made fun of drama cliches at the start, but the ending was full of cliches.