I don’t know why, but I get triggered every time she calls him “father”...

Yeah it’s a bit weird for me? Like you don’t call other people with a kid, father . You still call them by their name and shi. It would be more understandable if there was like a nickname for him in the novel and she kept accidentally saying that. But not father BAHAHA

well in the story she read he never had a name, only "father" so... (￣∇￣")