Isabelle Lightwood: You don't know my mom. She expects nothing less than perfection. Always. Sometimes I wonder if I could ever live up to it.

Sebastian Verlac: You know, maybe that's the attitude that got you hooked in the first place?

Isabelle Lightwood: I don't want to disappoint her.

Sebastian Verlac: Izzy, it's... it's okay to struggle. Life is a struggle. The point is that you are in recovery, and you are succeeding. Quite well, I might add.