it would be one thing if there was a light at the end of the tunnel but you are already pretty deep with no signs of it getting any better.... she is stubborn and refuses change which doesnt bode well for the reciprocity of a strong relationship. You need to love and respect yourself before you can be in any kind of relationship or you may find yourself attracting the same types of women. I mean i know ending a relationship sucks but consider the alternative, this is your way out :) FLY LIKE A FREEBIRD!