[Yes he definitely notices the hand/wrist crushing. But he doesn't stop her. He remembers she said she couldn't swim, and it's not like she could anyway with her legs paralyzed right now.]
I'm not going to let you fall off, you know. [His tone is a bit wry, a habit in bad situations like his grin before, but not mocking.]
[Action]
[Yes he definitely notices the hand/wrist crushing. But he doesn't stop her. He remembers she said she couldn't swim, and it's not like she could anyway with her legs paralyzed right now.]
I'm not going to let you fall off, you know. [His tone is a bit wry, a habit in bad situations like his grin before, but not mocking.]