Conflict is a common occurrence between couples that have differences of opinion when deciding a course of action. I know because it shows up in my therapy room a lot. I find this conflict often arises because couples treat every decision as the same decision when in fact, there are three different types: equal decisions which are fifty/fifty, the fifty-one percent to forty-nine percent decisions, and unilateral decisions.
The key to avoiding conflict is two-fold: understanding and agreement regarding what type of decision is in play and the willingness to place trust in the partner who has more authority in decisions that are other than the fifty-fifty type. If you find you and your partner often have conflict in connection with decision-making, couples counseling may be a helpful resource to pursue for peace of mind.