Kyūjitai form of 失礼: rude, impolite, ill-mannered

Kyūjitai form of 失礼: rudeness, impoliteness

to act

action; behavior

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

Kyūjitai form of 礼 (“propriety; courtesy; politeness; etiquette”)

perfect, completed

(と〜) thinking that […] (with the next clause explaining that the truth is contrary to expectations)