Someone only appreciating their partner and all they did in the relationship until that partner is gone is a red flag to me. Especially with the knowledge that he was cold, controlling, and showed zero to no love to her. Like he knew she loved him, and he did jack shit when they were married. He didn't really appreciate her until she was dead
But this could be more of a subjective opinion as that could not be considered a red flag to you
So judging by the comments I've seen no one likes the male lead- which is fair, I don't either. He's the type to only truly cherish something until it's too late and gone and I want to hit him with a bookshelf. I am curious to see how they'll turn this around in order for us to like him because he is not hot enough for me to ignore the red flags