obtuse nob
A mean nickname for your spouse who won’t stop arguing even when they’re clearly in the wrong.
You said the TV was on. They said it was off. You called them an obtuse nob.
They said you were wrong about the weather. You called them an obtuse nob. They said you were wrong about their spelling.
You said they were loud. They said you were a loudmouth. You called them an obtuse nob.