7. Ashes of Love definitely.
FL got this dream from SML (which she didn't realize was a dream and that it was actually false) that ML is FL's father's killer and then FL went on to kill ML and crushed his soul like her father's killer crushed her father's soul (thankfully ML's father sacrificing his life to save his soul, one part of them). Then they back together, though it took so long before that happened, but it's a life debt! I wish they went on their respective path, but no, they went back together. That's not fair for ML!
8. Tokyo Love Story should be mentioned
That stupid pighead Kan-chan left Rika for his pregnant first love which pregnancy was caused by that pregnant first love's ex-boyfriend/his best friend. I was happy for Rika for dodging the bullet, but still that's not fair! Rika made no mistake during their lovey dovey relationship and they love each other. In the end it's better for woman to being loved first, falling in love first will hurt.
9. Then You Try Making It!
FL broke up with ML on the day ML proposed to her. It's like saying that ML was not a marriage material. I meant she could break up before it got to that point or after that point. That's so low. That's really low!