'Meister, I think the obvious answer is to send her a pic of a floating dump in the toilet. If she passes the test, keep her. If she blocks your calls and unfriends you on facebook...the poop won out.
Just kidding.
In all seriousness, long distance relationships are tough. After I graduated from KSU, I moved to Iowa for my PhD studies. I was seeing this girl for 2 years. The lack in closeness/proximity eroded our relationship. However, I have seen several relationships thrive in this type of situation. If you are content (no one is happy all the time, that isn't possible) and the relationship is rewarding to you and her, it can most definitely work. That is the beauty of the human mind, great apprensions can be rewarded with unyielding trust if both of you work at it. Plus, you can send her dick pics, which is always a good time.
I say poop text her, but the decision is up to you (and her of course). The greatest relationships I have had have ended horribly and I regret none of them. If it fails, no worries, you loved then lost and those make the best stories to pass onto your children.