破鏡

broken mirror / fig. broken marriage / divorce

broken / damaged / worn out / lousy / rotten / to break, split or cleave / to get rid of / to destroy / to break with / to defeat / to capture (a city etc) / to expose the truth of

mirror / lens

a shattered mirror put back together (idiom) / (of marriage) to pick up the pieces and start anew / for a separated couple to reconcile and reunite