Yes, that's the way I see it too. It's just so obviously a situation that has to do with both people having hurts that are built up--I can so easily imagine Percy feeling so hurt by what Arthur said. And meanwhile Arthur doesn't think what he's saying is that bad at all so he's completely shocked and blindsided when Percy comes out with these criticisms of him! I do hope for a reconciliation that has both sides apologizing and perhaps also being able to see the truth in the other person without being offended by it.