to appear / to show up

time / an event, case, occasion, moment; a specific period in time / a time of something / a season / a tense / (literary) the time during which a narrative takes place

to be astonished, surprised, amazed, startled

to get a big surprise; to be astonished

lo and behold

Synonym of 黄昏 (tasogare, “dusk; twilight”) / Synonym of 黄昏時 (tasogaredoki, “dusk; twilight”)

sudden

suddenly

all of a sudden, all at once

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