If the way the thread is titled is any indication, then perhaps you've already answered your own question. If not, then there's lots of factors to consider, like how much time and effort you've invested into the relationship, and if that time and effort has any significance or bearing on your decision. Is it worth it to stay? Or should you cut your losses and leave? At least this is the way I would be thinking about it.

How badly do you not want to lose her? Badly enough to endure the way things are now for the rest of your life? Badly enough to forgive her for not being able to take some of the blame? Some people would be willing to tough it out this way; it depends on your temperament.

How about counselling? You and your significant other could air your differences in front of an impartial third party if money's not an issue. You and she may be able to come to some understanding with a little guidance from a trained professional.

Bottom line, there are many ways of slicing an orange. Each way will give you a different perspective. Sometimes taking no action at all is a solution. The situation itself will slowly inch toward some sort of equilibrium, and then one day your decision will have already been made for you...for better or worse. Best of luck to you and her.

P.S. If nothing else, be acutely aware of what's going on around you and how you feel about it from moment to moment. Make notes for posterity and future reference. It's precisely this kind of shit from which many good sad songs have been culled. Yours could someday wind up in the Digitrad database. How's that for optimistic spin?