It is common for couples to have disagreements; they are inevitable. Arguments are not fun, but not all of them have to be awful.
It is how you communicate and what you do afterwards that matters.
When arguing, we usually express our suppressed concerns about a plethora of relationship questions and answers, so if both of you can listen attentively and communicate your feelings respectfully, then an argument can actually benefit the relationship.
Learn more about constructive arguments.