I assume you didn't have a choice in the matter by then. [For Clarke, it's hard to process, but not impossible. Whereas before she might have used his belief if the time served her—just as she did back home, all to try to protect people through some thoughtless action—she has to reconsider that. Put it into further and deeper context. Of course, it helps that she's learned from that behavior.]
no subject
I don't know if "I'm sorry" is appropriate here.