Apologies if I made it sound like this was super serious and confrontational. Not my intention. Anyway, it seems to me like she's actually leaving to go to Hyperion or wherever. Since she states that Chioma still writes to her all the time it certainly seems like they still have a good relationship and it's well within the realm of possibility she is welcome to go see her without using the device. And for that matter, if she was just going to use the device there's really no need to "resign". The decision to do that suggests that whatever obligation she had to the proto-FWC she was working with was the largest barrier to actually traveling to visit Chioma in person.