He had been entertained, how marvelous for him. She had been anything but entertained. She looked cool and collected on the outside, but inside she was terrified. She had never had to use her self defense training outside of the class. Using it in a controlled environment was completely different from using it in real life. The classroom had been a safe environment. This situation had been unpredictable and could have gone extremely wrong. She could have been hurt, or worse.
"I suppose I did have it under control. But I think I'd rather head back to the building. I feel I've had enough for the morning. I'm sure you have too, you look like you could use a shower."
This was her way of saying please walk me back home, I'm not in the mood to walk alone. She couldn't come out and say that though. Asking for help was not her style.