Carissa finds a bedroom in the sumptuous mansion and -
- plays with spellsilver a while just so she'll stop feeling too full of internal screaming to hear the sound of her own internal voice -
She does feel hurt, that Cam wrote to Lastwall, which wants to defeat the Chelish military and overthrow the Chelish government and forcibly convert the Chelish people. (She's less disconcerted about Sothis. Abadar doesn't start wars.) She feels hurt because - because they were talking about meeting in the middle, being allies, and so she wasn't being Asmodean with him, wasn't sending people instructions to pretend to be Abadarans and come meet Cam and then be given huge numbers of diamonds by him, and he was doing that to her, and that means that she was an idiot. It's exactly what you should expect to happen. Everything that happened makes perfect sense and somehow she hates that.
Cam doesn't see it as a betrayal, which - does matter, it is informative about whether he'll do things like it in the future but not about whether he'll do things he considers betrayals. But it's also informative about whether the broader proposition of people being allies ever means anything or actually works.
Felandriel Morgethai didn't enslave her. Claimed that it was only partially about the fact she couldn't keep her without the protection of the Worldwound treaty, and was partially about not wanting to. ...and probably she in fact could've take Carissa to Heaven, where Lastwall thinks they could protect her from Wish-kidnapping. So probably Felandriel Morgethai really did have the option to Dominate Carissa, give Cam the power to dump as many diamonds on paladins as he wanted, and then send Carissa to Heaven to live our her life aging as slowly as Heaven could make her, and didn't do that.
So probably it's overreacting to decide that the entire concept of people ever being allies doesn't mean anything and couldn't have. Though it's also possible there are some treaties against Heaven taking living prisoners, or that the Worldwound treaty binds Heaven where it doesn't Felandriel -
- she'll be agnostic, about whether you will ever not get stabbed in the back if you try to deal fairly with people who aren't treaty-bound not to betray you.
She needs to repair her relationship with Cam regardless. It's going to be - very hard, but at some point that's not really an excuse.
Maybe Razmir will, now that she's in fact protected by an elaborate treaty situation, be a perfectly good trading partner.