serving in two dual capacities, serving in two posts concurrently

serve in two jobs or positions of responsibility concurrently, double as A and B

a cautionary tale, an example of what not to do / a person who serves as a living example of what to avoid

teacher

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

tutor; coach

everything

(colloquial) current boyfriend