I think it's a great sign that she came even when she had a migraine. When I have a migraine, I don't feel like doing anything (except decapitating myself). So, for her to drive over there feeling so badly, she must really be interested in a kitty.

No matter who goes home with her, it sounds like it will be a great home. PLEASE give her PT's address. Maybe she'll keep in touch and post an update now and then.