"The only way to get rid of her is to send her into a parallel world from which she can never return; otherwise she would stay with the doctor forever. We can't get rid of Rose. So, lets send her parllel universe !
River and her Doctor. Doctor Who. She reaches out to straighten his bow tie and it's not there. It's The Doctor but not Her Doctor. (The amazing thing is, I don't know if they had even planned for Eleven to have a bow tie yet.