[Nuwa holds on while passerbies suffer their unfortunate demises. Won't be long before they get to their destination, so perhaps asking right now will be good:]

I believe it's about time you explain how you intend to kill this...Vault Hunter -- and if this detestable man and my role is, to put it bluntly, to serve as fodder while you perform the deed.

[No hard feelings if they're cannon fodder, really. She doesn't intend to die, so she can't really be upset about such a futile role assignment if that's what's going on]