Glenda was confused, but she obeyed and stayed quiet.

“Don't bother him," he said to her in a low voice.

Isaac was just venting his anger, and his anger was very understandable.

Granted, Robin brought him up, but it was only to turn him into his puppet that would be at his beck and call. He was the only reason why Isaac didn't do anything to Audrey all these years.

But Robin didn't seem to appreciate that. Instead, the old man turned his back on him.