@KaluBhalu He's been shown to collapse after using his powers too much in previous chapters. It makes perfect sense that he probably overused his powers and then fainted, allowing himself to be kidnapped. As for the girls, there is this concept in psychology called the "mere exposure effect" where people will gradually grow fonder of each other just by being in each others presence a lot in a meaningful way. Then if you consider the high stress environment that the apocalypse is, it makes sense that they would like him even more because he is seen as a symbol of safety for them.
Spread cheeks, not hate - some wise commenter from a long time ago