"Fiiiiiiiiiiiiiiiiiiiiiiine," she sighs it out like a deflating balloon, "we'll do what you want, Dipper." As if she also doesn't want to be eaten.

She's not going to forget to bring it up again once they're safe though, especially since the idea that she somehow helped without actually doing anything is perking her up a bit again. Enough to get her back into the 'running for our lives' spirit anyway.

Also helpful is the very sudden and loud slam coming from the door that Dipper just barricaded. Their new friend has apparently managed to claw his way through the shop.

"The bus! The bus can drive us away! And Waddles is there! He really hates being eaten, Dipper. We have to hurry!"

So, on one hand, she's still under the impression that this is just a terribly run pit stop on the way home and that Dipper brought the dinosaur. On the other, she's darting around now, looking for the best way out. Which may or may not actually be helpful.