Synonyms for Fall Apart (same or very similar meaning)
WordNet sense 1 (lose one's emotional or mental composure):
go to piecesWordNet sense 2 (go to pieces):
break, bust, wear, wear outWordNet sense 3 (break or fall apart into fragments):
crumbleWordNet sense 4 (become separated into pieces or fragments):
separate, separate, come apart, split upFrom the ODE community, based on WordNetadd/edit