Bottom line is they are bad together and I hate him for her. Others don't seem to take it seriously how unhappy she was and her vocalizing to her side piece that she wanted to die seriously.
Yes he is competent but so what? He has a terrible personality. That one person who'd make a good friend and boss but just a terrible lover. Point, blank, period. People like this actually exist and I think that's what this story has clearly established as you continued to read the chapters. He's respectable but at the same time not.
FL has good reason to dislike him because she heard a conversation that sounded like he wanted to kill her. Even when she tells him this he doesn't reassure her but keeps her on edge just because he likes being difficult and toxic.
This will be a story where FL is prideful, childish but strong enough to hold it together when she needs to, and is soft and sensitive behind closed doors, she is able to realize possibly that her husband just has a sick and twisted personality that means well over time, but personally I do not think I will be able to stick around to read it, because ML is just too toxic for my taste. Like I can't fall for someone who bullies people that are already miserable and hurting, that's just sick and just puts such a bad taste in the mouth, they'll possibly try to spin this like he had a terrible childhood and is twisted because of his family, like that makes it any better for a hurt person to hurt another hurt person.
I can just tell the emotions in this is going to be a mess and if they just try to gloss over all of this instead of giving it a proper address or closure, I may have to drop this.