Good question! If she’s your only friend, then you should get out there and do more with your life, beyond your romantic relationship. It’s very difficult on a relationship when you don’t have a life beyond it. Having friends, family members, work, hobbies — these all give you support and nurturing that you don’t get from a romantic relationship, and they take the pressure off the relationship and off your girlfriend (and yourself) to get everything you need from one person, which is actually, pretty impossible. I think that if you expand your own life beyond your relationship, you may find the relationship has fewer fights and less stress on it, and gets better. 🙂