... I am so the last person in the world to be saying this, but ...
Seriously. Just relax.
I have fights with Scowl every day. Over small things, over big things. Sometimes they degenerate into us calling each other names like juvenile kids. Sometimes they end with both of us trying to slam their bedroom door louder than the other. But sometimes, just sometimes, for the things that we feel are really important ... one of us is able to take a step back for a second from our emotions, swallow our pride and try to calm down for long enough to get our point across.