Ah, hah. did you get a response to the letter yet?

how many hours apart are you from each other? Couldn't you go visit her more frequently?

Could be that she enjoys having this going on her life, she likes you, but isn't ready for anything serious or isn't thinking along those lines yet.

I must admit that I once met a guy and then carried on an email relationship with him for a few months after that. When he eventually came to visit me, I was so busy I couldn't make much time for him. That on its own was somewhat telling of my level of interest. He was wonderful to me, bought me gifts, flowers. But it just didn't seem that feasible, as my life is quite firmly rooted where I live and his where he lives and I couldn't really seem where / how the two would come together, and perhaps I wasn't compelled enough. After that trip, he didn't contact me again, though I tried to contact him (not very hard, but I tried). Since he had made the big effort and I didn't have much to give in terms of time, I guess that was that. I would've, however, had been happy to carry on an email relationship with him, I think...because I happen to like writing and corresponding with people in that manner and he was a really great guy.

I'm probably not being very helpful. But I think you should just let her know you're interested in something more serious and that you would be prepared to travel on a regular basis to make it work, if necessary.