a sense of disharmony or that something does not fit in/is out of place

come about, occur, arise / result from, be caused by

a group

action; behavior

to act

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

inside

中々: very, quite, considerably, rather, by no means (with negative verb)