Well, this thread got interesting.
First off - despite their rude manner of saying it, a number of other people here are somewhat correct in that you are clearly attracted to your friend and want something more from the relationship. Believing that you will be able to advance your relationship without ever making your position clear, or simply by being dutiful, is a good way to get yourself screwed over, chasing a delusion.
Second - this doesn't mean that you must give up spending time with your friend - just that you must be able to place that time within a proper context. Many people want to treat a 'relationship' or prospective one like a sort of investment. Put enough time/effort into it, and it's going to yield something you want. If you are spending time with her with the expectation of it yielding a reward, later - then you're probably in it for the wrong reasons, even if you two were officially dating.
Third... just because a girl isn't in your sight doesn't mean she's getting fucked by someone. Most women go through their day just like everyone else and aren't living like they are trapped in a perpetual porn screening.
It's probably the case that this girl is not entirely comfortable going out with you. On one hand - she doesn't want to hurt you, but on the other hand, she doesn't want to complicate things by potentially advancing the relationship. She probably didn't expect you to drive 2 hours, and threw the idea out there because she didn't want to turn you down, and figured you would more or less find your own excuse to not travel.
Women always seem to underestimate just what a man will do for them, and it often leads to a situation spiraling out of control. Before she knows what is going on, you've bought international plane tickets, booked hotels, and mortgaged your house... and she's like "... holy shit this person is insane..."
Which - to be fair, men are. When we lock in on a singular task (which is what we are wired for, neurologically), we become extremely fixated on it to the exclusion of almost everything else. That proposal to meet on the moon isn't a "oh... well, I'd like to do that, but I don't have a rocket..." - that's a problem that we have been tasked with solving. Girl wants to meet on moon - no rocket, build rocket - meet on moon. Have fabulous romance because she will be impressed and endeared by the dedication.
In reality, she's mildly terrified of what will happen when she says "but... I didn't really want to go to the moon" - and is going to try and find every way out of going to the moon without actually saying she never wanted to go to the moon.