Obviously, telling him hadn't been the right thing to do. Isaac flinched back a little at the sudden change in tone before bolstering himself and... well, getting defensive. He couldn't help it- Erica was his friend, and he was responsible for her. She wasn't a bad person, and she certainly didn't deserve Scott's dislike at the very mention of her name.

(Maybe she did. Isaac and her had done some terrible things together, after all.)

"Look, she's fine, okay? She's not going to do anything stupid. Don't- " Isaac's own eyes narrowed, and the next words were a warning. "-don't scare her off."