Hestia had really expected him to leave so when she felt a hand around her arm she jumped.
Suddenly she was in his arms and Hestia didn't want to move. "I'm not like other girls," she said without meeting his gaze. What she meant is that she wasn't like the girls Charlie normally went for. She knew how much she cared about Charlie and Hestia wasn't going to throw away all of that for a quick fling.
All he had to do was show her that he wasn't going to treat her like some random bird.