Fiction in 58, dialogue

Dialogue is hard to write. It's even harder when you limit it to 58 words - but you still want to push a story forward. Consider it a test.
A fiction in 58.
Just dialogue.

Brutal Truth
“If judging him judges me, what does that say about me?”
“Forget I brought it up.”
“You started this; an explanation, please.”
“Usually, our harshest critics are ourselves. Your callousness radiates to everyone - but yourself.”
“That’s a horrible thing to say.”
“You asked for it. Your cruelty knows no bounds.”
“Are we friends?”
“Yes, your only one.”