"You don't know?" Jack's voice raises, a higher pitch, more irate. "And you just what? You just let him go? And what is he now? Who is he now? Do you know any of that, Mina?" It's hypocritical of him to ask and to criticise her for leaving him when he did just that to the both of them, but he can't help it. A family he thought dead, now appearing, and appearing like this.