"Are you both done talking?" Tess asked. Clearly, she is displeased by what Arion and Mary are displaying in front of the twins.
She only asked them a question, and yet it led to another argument. How dense can they both be? Are they not noticing the expressions that twins are showing? The twins are not comfortable with what is happening.
Every parent should know that arguing in front of their child can have a bad effect on the child itself.
Sensing the displeased tone in Tess's voice, both Arion and Mary stopped and stay silent. In the moment of their silence, they both realized that what they have done just now is something they shouldn't have done in front of the twins.
They can argue all they want, but they should do it in front of their children. Guilt is surging up inside of them. They were arguing about the happiness of their children, but what they are doing is not helping their children to be happy.