It's one of my biggest reasons for dropping so many well-rated C-dramas. I just can't make myself watch when these things happen

  1. ML acts as if he is the only smartass. And weirdly all his friends act as if they are the ML's kids and they need his validation for everything eg. Falling into your smile, Love 020
  2. Rude as hell ML. eg. Lesson in love, Falling into you. 
  3. Cold CEO trope overdone.

There were few shining stars in the dim night though like Go Ahead (ML was still acting like a smartass but still manageable) I belonged to your world which had one of the best ML characters I have seen in any Asian drama. Wish there were more such down-to-earth, warm-hearted MLs.