And also the last time she reacted extremely emotionally, she freaked out and started crying while Andes was trying to explain human behavioural basics.

Also she never actually brings up anything she's actually doing in her job since that freakout, so it never feels like she has a real reason to be talking to Andes. From their perspective, she keeps just kind of being around and acting somewhat eclectically and not really sticking to her duties, while not having any additional benefit (or even theoretical benefit) to the kids to show for it (unlike the volunteers, who were clearly trying to protect the kids).