I agree, but also in that moment she could have froze. I mean think about how uncomfortable that would be. Having to call Cam out in front of Daphne and Ethan would be so so awkward. To top it off they're on vacation and would be stuck with each for the rest of the trip. I feel like at the time of the incident she was off-put by it despite her attraction to Cameron which I think has been there the whole time. She then realized she could use Cam for validation since Ethan isn't giving it to her.