SPOILERS!!!

So, I wanted to like the whole cast especially the female lead because I thought she was beautiful. I thought the ml was handsome but in a strange, overdone, possibly plastic way; his whole face seems exaggerated just too much of everything that should have been handsome but seemed off together. But anyways. I liked the fl at first then her personality of being against all things Gu Yi got to be too much. Like she so quickly chose everybody but him and she did it in blatant ways that screamed that she just was finding excuses to not believe him at all.
It was actually strange because in the beginning, I don't think she had a problem with being his mistress or standing on the sidelines of his life. She kept their relationship a secret, she was okay with being the one he lose his temper on and not saying anything. I think if the other woman would have left her alone she would have still worked there and she would have stayed by his side.
I don't think he ever had bipolar disorder. I think he might have had PTSD and his personality changed due to his obsession with the fl but I don't think he ever had the disorder. I think the personality he had when he later pursued her was his original personality before he had the accident. But I also think that he treated her that way because she let him for whatever reason. She really could've walked away in the beginning and their relationship would have been different.
But honestly by episode 10, I didn't like her. Excuse the fact that she only started dating him because she thought the heart he received was the man she liked. She was fake from the beginning and wanted make it seem like he couldn't be honest with her but he was the only one that was honest the whole time.
The fact that not one person except for his parents were ever in the MLs corner. His mother was so aggravating in the beginning but her character changed but the FL's mother was aggravating and nauseating all the way to the end. Didn't like that lady at all. But the little brother was so cute!
This series ran through every cliche-trope there was in B-rated Chinese dramas and tried to pull it off in 20 episodes no longer than 30 minutes each. No wonder it was so ridiculous at times.
So, you are not going to like the ML in the first couple of episodes but he will be the only reason you watch in the next 17 or so. Again, I ddn't mind the FL especially after she realized that he was not her enemy but she was irritating for too long more than half the series to be exact.