The turkey was not asking to be petted. She was submitting herself to be bred. Unlike chickens the hens (normally) decide when the toms can mate with them.And when she got well enough to wander around the barn she would walk in front of me and then plop down. I realized it was her way to ask to be petted.
When the hen was molting she was very uncomfortable which explains her mood change. Trying to put a "sweater" on her was wrong and would make her even more uncomfortable. People cause animals more harm by their ill-advised good intentions than by any other way.
Turkeys are a flock bird and really don't do well living by themselves. Chickens are not turkeys and are not an acceptable companion except in rare cases. It is not uncommon for hen turkeys to take issues with roosters.
The best thing to do is to either find her a home with other turkeys or get her additional turkeys as companions.