It sucked.

The central love story:
The ML is an idiot and has zero reasoning skills. He decides to believe his gf time and again and just ghosts the FL and then pop's back up in her life without any explanations.
The FL gives in too easily and deserved a lot better. Her character proved how blind love can be, she kept loving despite the push and pull and didn't even stop to think that this was far too toxic for her.
They ending was confusing, claiming that they ended up together. Why? She deserved better and ML was honestly too in love with himself to ever trust anyone and went out of his way to prove that he didn't need her in his life.

When they packed up their bags and departed to home, I knew something messed up was coming.

Other characters:
My heart went out to Jiang Bai Li, FL's best friend. She just couldn't give up on a guy who was so toxic that he hit on FL the first time they met and Bai Li was right there. She deserved so much better.
Zhang Ming Rui, friend to both ML & FL was the only sane person in this entire show. I wished he would have ended up with Bail Li.