Have you ever gotten in an argument with a loved one and regretted things you said or did, after-the-fact? Are you frustrated with how volatile your relationship is at times or conversely, are you avoiding conflict at all costs?
Conflict in relationships can actually help to deepen understanding and connection with others when done fairly. It let's us know what's important to the other person, what's important to us, and gives us a chance to express ourselves so that there can be greater understanding, care and compromise.
Be mindful of the other person's cultural background/family norms et al. I recommend you schedule a time and sit down with your partner when you both are calm enough and generally in a good place. You can create a list individually (sharing afterwards) or collaboratively at the same time.
Here are some examples of fair fighting agreements: