One of her best quotes ever. And one of the few times Scott fully trusts Jean to handle herself and not project his worries onto her. I was glad Fabien Nicieza put some respect on Jean's name after having her be blindsided by Psylocke(Kwannon) 8 issues earlier.
Anyway, these moments with Sabertooth living in the mansion, and Xavier's methods with Magneto really showed Jean coming into her own and confronting Xavier when she felt she needed to. Out of the O5, I think Jean and Hank were the first ones to address him as Charles and not just Professor