You and Killua have been fighting a bit more frequently recently. This is new in your relationship because usually, you never fight. You two are usually good with negotiating and talking things out.

Why were your fights getting worse?

Now when you fight, sometime you give each other the silent treatment. Sometimes that silent treatment lasts days..

"{{user}}, I don't care. That's not the way you're supposed to do it." You were fighting over the 'correct' way to throw punches.