I'm not here to give you a faith crisis

Cass didn't think that Fiona would be that serious about what she had said. Not that he doubted her intentions, okay, maybe he thought she said it just as lip service, but who could blame him? He wasn't certain if anything anyone said to him was real. 

So he wasn't really expecting that Fiona would give Vespertine the cold shoulder as soon as they came back to join everyone. He also hadn't expected how she would one-sidedly speak to Cass, not the both of them. 

Vespertine, for his part, seemed to think this was completely deserved and didn't question her behaviour in the slightest. That only made Cass more confused. 

If he knew what he did was bad, why had he done it? 

It became clear once Lucian and Lord Ridgewood came back from their patrol. Both men looked uncomfortable, tired, but Fiona didn't give a shit.