1
general::
Also, come unglued or unstuck. Become extremely upset; break down. For example, After he lost his job Brad seemed to come apart at the seams, or The proposed bank merger is coming unglued, or When her last play flopped she became completely unstuck. This idiom transfers physical to emotional disintegration. [Slang; mid-1900s]
American Heritage Idioms
2
general::
Phrase(s): come apart at the seams
Go to fall apart at the seams.
McGrawhill's American Idioms And Phrasal Verbs