Ashton says only human flesh sates the hunger. Did you not notice in the middle of all the chaos? Or were they dishonest?

I'm not always the best at judging people's honesty, but it sure didn't seem like a lie. Taylor didn't have doubts either, and she would have noticed any physical tells.

[Has Ulla already carved up her own body, back on the other ship? Yes. She wouldn't have done that without being relatively certain.]