Years ago I read an article that said (hugely summarizing) that there were three kinds of marriages:

1. Neither person likes fighting.
2. One person likes fighting, the other doesn't.
3. Both people like fighting.

According to their study, the second group was unhappiest. People who have similar conflict resolution/argument styles tend to be the happiest.

I am not sure if that has any application to the people you were thinking of when you asked the question, but it makes sense to me. I grew up in a house where loud bickering was normal. It's been an issue when I've dated only children!