sounds like your entire story has more to it that what you were able to put down.
Things need to be clarified further like, when was she divorced exactly? did she observe her Iddah? were all the conditons necessary for a Divorce met with? etc etc.
Please see the link below and the following pages to get a better understanding on Divorce according to the islamic laws
I suggest you see a Local Aalim and seek further guidance and clarifications.