GrannyB,
all my prayers shall be going for your daughter's recovery and then for her to be aware that she is better than her husband is letting her believe
.
He is probably trying to control her.
Once she sees she can exist without him, she will blossom. She is still young.
I hate to see mental & emotional captivation (similar to the Stockholm Syndrome).
good luck and keep us posted, please.
I shall be thinking of you, and I do hope she goes to the clinic in FL ...