The hen usually dies only after flowering. They like full sun with some shade during the hottest part of the day. Usually when they get mushy its a sign of rot. They prefer to be on the dry side. Lots of humidity can be hard on them. That's probably why you don't see them often in Florida.
You can try to remove it from the soil, remove the mushy leaves and let it dry out a few days before replanting. You might be able to save it.
