[Maria merely raises a brow somewhat disbelievingly at that, but doesn't remark on it. There's not much point arguing how he'd react to something when he could give any number of answers.]

There's really no need for that. However wordy he might be, he's clearly passionate about the subject, so if you have so much of a problem with it, walk away.

[Her tone is mainly polite, if firm, but there's a steel edge to those last words. It's not quite threatening, but it's definitely not the tone of someone who's going to be complacent if he doesn't reconsider.]