The "should've" on some else's emotions and pitting one kid against another because it suits your sensibilities better is not accountibility, and not friendly or neutral either.... parenthood is hard, somethings dont go according to what we envisioned, big emotions happen.
All of that is 100% natural and normal, and no one is not being "held accountible" for being human. And the kids went back to being besties before I drank my coffee.... you and I have being arguing way longer 😂😂😂