My husband is generally a caring and compassionate man, but when we get in an argument he never admits fault or apologizes. It’s like it’s not in him. I know this is the pattern in his family too. When the argument is over, he goes about his day, no grudges held, but no sorry either. I might err on the side of apologizing too much, but part of the reason for that is that I hate conflict and want it to be resolved as soon as possible. Otherwise, I internalize it and fume. So, no apology from him equals me fuming for days, while he’s moved on.