ancient times, a very long time ago

to act

action; behavior

Kyūjitai form of 様: certain form or way; condition, state; design, pattern; indicates humbleness or politeness

the past, old times / ancient

once (in the indeterminate past)

olden days; former

to return / to go back / to come back

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