Re: Decisions , who makes them…
The personality is part of their dominant nature. Having an “apparent” personality, as you put it, makes it easier for people to thwart decisions / choices they don’t like, right of the bat, owing to their personality. Also, it doesn’t mean much that the likes / dislikes of the non-assertive partner are considered. Fact remains that one person ends up taking charge of important events and decisions, and hence becomes the dominant partner.
There may not be any mal-intent but it happens and its only natural with any two people living together.