Shall I stay with my wife because I was swearing at her ex and she started hitting me with a shoe?

wow is she trying to cause more of a mess then was actually needed what happened to cause the out burst she was interfering maybe to get it to stop and controlled i would want to sit down and talk about it to see what caused the up roar thats a hard one to understand why she would hit you with the shoe cause your swearing at him maybe it was her way of trying to deflate the situation but before you get up and leave her i would want to sit down and find out why she thought she needed to intervene into the situation