[@Shazamrock] My idea is this from Clarissa's perspective:

Clarissa is agreeing to battle Nils if he still wants to, at least, and is chill if Amelia wants to watch them. She'd still wants to ask Nils if he'd be willing to group with her, and Amelia perhaps, after a battle? Then perhaps pose the sewer question and the 'we can meet up later' to Nils and Amelia afterwards as a way to still group up, maybe, but not trying to pressure them into the sewer business either.

Does that sound good? :O