Morn

Don't worry, "Fabes" breaking apart is commonplace. You want low heat, simmer them just below the boiling point and they'll stay nice and whole, high heat will spoil them in no time at all. Perhaps it was due to overcooking, that's also usual, but anyway you should avoid stirring entirely once you've got them simmering. Just close the lid and let them be for 30 minutes, or whatever your recipe calls for, because any sudden temperature change breaks their skin for sure.