[2 Yoopers]

For the crimp fitting to just come off the end it had to have been an improper crimp. Typically there is a measurement across the crimp shell that they check to verify a proper crimp. If the fitting that came off measures larger on the outside than the one on the other end, there was a bad crimp. End got pushed off gradually until it came off.
You can purchase a new Orfs crimp end at Napa and they will crimp it on your hose for a spare.