[Please imagine the most unimpressed look that anyone can muster... because that's the expression that she's giving Peter right now.]

He enlisted you to solve some stupid infighting? Are you joking? [For a moment, she looks like she honestly wants confirmation with that.] These are grown adults, correct? This isn't some teenage gang that you got yourself roped into?

[She would honestly be less surprised... These Avengers sound like children, if they needed a sixteen year old to help them solve their problems.]