When Trevor kidnaps Aisling, she manages to get a message out. Optimus immediately responds and saves her. Awakening in the safety of his grasp, they exchange apologies, leading to:
Optimus: I will be fine. Please do not worry yourself.
Aisling: ... I'm going to anyway. But that's okay... Family are supposed to worry.
Optimus: Family... Yes. Family does indeed worry...