You may be right here as some people take a very long time moving on and some never do, As cruel as this may sound, you may have to set a date to which you decide whether its worth staying or moving without her as you have your life to live and your own dreams to follow and who knows exactly when she will ever snap out of it. 11 years is an awful long time to grieve over someone especially if he was only a BF and she does need to get over it and get on with her life so now the choice is yours