Is it worth it for you to stay in the relationship? Remember, any other "problems" or issues that may arise in the future will just make this one more pronounced. It just gets worse... so to speak. You may hold this against her at some point. You really need to discuss this with her and straighten it out. Work something out or go your separate ways. Sooner or later you will split. It may just be later if you don't do something about it now.