a falling out
A severe quarrel or disagreement, especially one that leads to a temporary or permanent end of a relationship. I haven't spoken to my brother for nearly three years because of a falling-out we had over our late father's estate.
have a falling out
To have a severe quarrel or disagreement, especially one that leads to a temporary or permanent end of a relationship. I haven't spoken to my brother for nearly three years because of a falling out we had over our late father's estate.