ML is a rational and realistic person. He is a good person, but is calculative. His every move is calculated with lose and gain in mind. Initially he got attracted to FL because she was quiet, beautiful and harmless. He never intentionally harmed or put the FL in a disadvantage. He tried to protect FL in his own way as good as he could, but as a rational person he didn't know how to or didn't want to deal with FL emotional expectation. Instead he overestimated her and thought that she would be able to cope with the issue by herself.

FL is an emotional and stubborn person. She is initially naive, but she is not an idiot. She knew ML was not in love with her when they got married, but she got in love with him and started having emotional expectations from him. She was left practically alone since ML was always busy and didn't know about her emotional burden, and got into depression when found out how lacking she was, specially when people compared with ML's ex wife.

he often drank which became a problem sometimes (not the abusive kind guys haha), he was vulnerable at times, had realistic fights with the MC because he wasn't a perfect lover but MC had expectations since she loved him, and since the dude was a prince, MCs dependency on him was tackled where she felt lonely when he was busy so she decided to socialize and gain connections; although tbh ML was fine even if she didn't do that.

First thing first, there wouldn't be any significant characters' development for both ML and fl.

I believed Erna wouldn't be able to bring people to her side until the very end if the manuscript of Gladys' lover wasn't published. She's still clueless about how the high society works despite she's in it for more than a year and very dependent on ML regarding her social life. She can't stand for herself because of her background and being innocent and overly naive character she is. She's just kind of accepting everything that everyone thrown at her, and rotated her life around Bjorn (the ml). Which made me as a reader find it quite annoying.

Then, the ML isn't that bad, I kinda like his nonchalant side, which is a polar opposite from Erna. But, he is the epitome of emotionally absent partner with privilege of being handsome and rich. Like any other ML who has this very same desease, he'll chased after Erna and basically begged her to stay by himself after she decided to leave him behind.

i suddenly remembered what he said to her about those decorations in her hat. I forgot the exact words but basically he said she should look like those things she created. Be pretty and decorative or something like that. I cried in that sht. Dmn if I waa her I would bawl in front of him. He's insulting something I really love to do. It would feel like I was worthless. Dmn it. ML is really a jerk.

I will laugh if anyone tells me the ML repented at the end. People don't change in a spur of the moment, he may have realized something but the damage is done and Erna is fully dependent of him and probably for the rest of her live while still living with him