He laughed slightly, and decided not to bother clarifying. Clearly, time traveling was common to this doctor if not to her, though she seemed to be handling it well enough, as far as he could tell.
Then again, when your options were adapt or go mad, he guessed most people would adapt.
Her description of the meeting and the had happened but hadn't actually happened was a bit confusing, but time travel in general was. Especially when one started to consider paradoxes and everything else that could go wrong.
"It ... wasn't my intention. To be a doctor on a ship. I ... had a career, in a hospital, but I had to give it all up to save my sister." He paused. "It's ... complicated," he amended, though he'd go over it once they'd settled down if she was interested in hearing it.