After reading the most recent chapters and re reading the beginning now I understand why the ML is so different to how he acted and loved the previous MC.
I wont spoiled it but I would suggest u all to read up to the last chapter and re read the story again. There are details that makes more sense and is kind of sweet the way the ML see our new MC. I mean he did approach her in the wrong way but as a person who went thru the things he did, this is actually the only way to become a softie instead of an obsessive spouse lol