Should I give her the benefit of the doubt?

Theres this girl Im in love with. Not loser teen love or that gay "omg i like you" ****. Shes taught me more than I could ever imagine; her laugh has carried me through times that I know I would have killed myself without her. Yes I'm a manicdepressivebipolarguy. It's fine now I've been stable for a year. But the problem here: She lives over two hours away. And our parents hate each other. So we can only talk on the phone, and that's ****** up enough. Shes always been a forgetful person, and she sometimforgets to call back when I leave a message on her cell(she considers me just a friend