Blue wasn't bothered by the way the Doctor asked; she knew what it was like to need to protect those close to you. She only nodded and nudged her head under the beam, and then her human form was over her again instantly, arms pushing to help get the beam off of the woman enough for her to hopefully slide out.

"Don't worry about the city right now. We need to get you out." Blue's own advice stayed fresh in her mind. She had to focus on these instances, like helping the woman, or else the fact that the place she had long since called her new home was crashing down would bury Blue's mind along with it.