And in the context of the story, would it not be plausible that they would acclimate to being isolated from their peers? There is precedent. In WW2 there were Japanese soldiers that remained fighting their war for decades after Japan surrendered, cut off from anyone that they could feasible interact with as they still believed they were deep in enemy territory, coming out only when their commanding officer relieved them of duty.
And in the context of the story, would it not be plausible that they would acclimate to being isolated from their peers? There is precedent. In WW2 there were Japanese soldiers that remained fighting their war for decades after Japan surrendered, cut off from anyone that they could feasible interact with as they still believed they were deep in enemy territory, coming out only when their commanding officer relieved them of duty.