to give advice in hindsight

advice

failure, miscarriage / mistake, fault, error

fail / make a mistake

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

(後 "spatially behind") to depart from; to leave / (後 "temporally later") to put off something, to be dealt with later

behind, after

(obsolete) later, afterwards, some time after the present