>>149910813
I thought the same and was kind of hoping the anon would conclude that character's plot by saying Bob suspects something he came in contact with during his first visit recovered him and is staying with them to investigate but also silently out of superstitious fear he might relapse if he leaves, and they don't kick him out from fear if he did it would be ruinous PR.
If not misdiagnosis it could even be something before or after the visit slipped his attentiveness from focusing on the more major event and location.
Kind of bleak, but also would be an interesting background plot thread. How do we know for certain what we "know for certain"? Feel free to take or leave any of this, anon. I personally would just love more unexpected characters and scenarios that get the audience's attention with a curious premise then probe them to question their own presumptions and doubts, like Eternal Sunshine turning from a sci-fi tragedy into a psych session for avoidant personalities.
There was also a similar thing in the show V but there it was more malicious with the invading aliens tricking a reporter into thinking they'd cured him so he'd unwittingly, and therefore more sincerely, become their propagandist.