I think my poor Sweetie either has a broken leg, or sprained/strained something. There are ways to make a splint, but I can't even find if there is a break, so I am going with the other option which is to let her heal on her own. She may end up with a limp, or a crooked leg, but I think that's better than making her suffer more with me trying to play doctor.
I was going to try to keep her in the crate, which is in the coop now, but today when I went out to check on her, she made it clear she wanted to come out. She is walking on the bad foot/leg, and ventured outside even though Roo was out there, close by. She promptly went under the "awning" (part of a car roof propped up on cinder blocks) and settled down with the other 3 hens in there. By the time Roo realized she was out, she was protected enough that he couldn't get to her. So he settled down right next to her, waiting (I think) for an opportunity.
All but Sweetie eventually got bored and wandered off (they free range during the day). I thought she was going to stay in her safe spot, but when I finally left, she followed me out of the fence and made her way across the driveway to the usual hangout, the barn next door. She is actually walking pretty good compared to before, but definitely with a slight limp and a slower gait. I thought about following to see how she does when and if she finds the rest of them, but I can only supervise for so long. I either have to lock her up, or let her go. For today I am letting her go.
The real issue is going to be what to do with Roo? I am pretty sure Sweetie is the only one he has tried to mate with, probably because she is the sweetie and the easiest to approach. Now that she is gimpy, it will be even easier. But if he hurts her again, or one of the others, I am afraid I will have to send him to auction.