Having read a ton of romance-fantasy slop, I'll say you're being very generous in your interpretation 😬 Far too often an obsessive creep like this is meant to be the lovable male lead.
At the risk of saying what has already been said: it's somewhat okay, but I'm annoyed that her murderer is also the potential paramour. I don't mind a story where girlie goes back in time and starts to fix her life, but this is just... badly executed.
Unlike his wife, he cares for their daughter enough to put her needs before his own, even to a pathological degree; also unlike his wife, he's mostly unwilling to stand up for himself and realise that a life without his wife will likely be much healthier for both him and his daughter.
Glad to see that other girlies are definitely going to protect Maria! After all, it is pure nonsense to somehow make it Maria's problem that Aoi is not blood-related to her...
I hadn't even thought about points 2 and 3 because it shows that not even her parents really care about her lol. They found her a man as a kid and that's their job done.
Part of me is curious how the author could try to convince me that somehow this guy who can only operate in terms of "insulting his fiancée" and "refusing to accept a rejection" is worth consideration but then I remember that they lost me with the very premise because this guy is fundamentally...
He only changed because he saw how much she did not want to talk to him, without yet knowing it was her, and that turned him from a rude asshole to an obsessive creep.
Romance fantasy often has either some of the best female leads or some of the most rancid male leads and this is very much the latter. This goes beyond being picky, the guy is just a massive cunt, I don't know how can anyone be so shy to constantly insult their fiancée in her first life, and a...
...I forgot completely I added this to my library. My dude's so busy putting a foot in his mouth constantly I don't think he had a right to feel jealous, and I don't buy her "letting get guard down" when he has just insulted her time and time again.
Why did he punch her? Did the asshole not understand that of all the people in the castle, Shirley can do the least and they forced their way to stay? It's not her who involved them, they did it themselves, and it's not Shirley's fault that the princess has lost all her marbles and other cunts...
Oh right, now I remember: the princess is constantly hogging the guy and effectively blackmailing him with his own identity. Let's see how long this frustration lasts.
Telling her he doesn't want to spend time with her could lead to having to explain why, which could lead to coming across as trying to sabotage their friendship if the other party chose to read his behaviour negatively. Which his ex-girlfriend did, a lot.
I'll leave the actual judgement until...