will you marry me

to assume a role

matchmaking / a matchmaker / an intermediary, a go-between

a mediator, an intermediary / (shogi) go-between (piece in chu shogi and larger shogi variants)

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

marriage

get married

(chiefly women's speech) first person singular pronoun: I, me