I used to have them. Loved them. Every sunday was food making day. Definately high maintenance. Any one thinking of getting them needs to research alot beforehand. I read everything I could and talked to people who bred them for about two years before I got my first two joeys.
I cant tell you what is going on with her but I would not buy her. Especially if you have plans for milking her as you would have to breed her. If you just wanted her as a pet with absolutely no intention to ever breed her and no way she could be accidently bred I might consider her.