Her pride was working it's way back up, wounded as it was, and the shock on his face at her admission was a serious blow. This was easier anyway, to nurse a wounded pride than worry about what had just happened and how she would avoid it in the future.
"Thank you, again, but you've done plenty for me. I wouldn't want to stretch your hospitality too far," she was really working at being polite in this- Kalev, as much as she didn't want to admit it, deserved that much. But a wounded pride was not something that made her overly kind.