It sounds like you were a convenient friend when she lived in town, but by avoiding you, she clearly isn't interesting in investing the same degree of energy she did once before.

It's sad when you open up so totally yo someone and they let you down. True friendships seem to be able to pick right back up after an absence, but maybe she was just using you. Sorry to be do blunt. Your behavior of trying to make it easy for her to be with you seems to reveal her further separation, in that she's either embarrassed to agree to these free rides and cheap outings or she just had moved on.

I would encourage you to seek other sources of support since she has dropped out of the picture.

Sorry and good luck.