fall apart is a verb meaning "lose one's emotional or mental composure". It carries 4 recorded senses.
lose one's emotional or mental composure
“She fell apart when her only child died”
break or fall apart into fragments
“The cookies crumbled”
“The Sphinx is crumbling”
Definitions, synonyms and semantic relations for fall apart come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.