I can\'t believe this

I can't believe this is happening. We have gone from Just friends to something complicated.  I may be moving in January and we don't want to start something we can't keep going. I'm not even moving that far away.  But it will be an hour and a half from her and her days off from work are scattered and never together. I am falling and can't stop it. She is all I ever think about. I can't help but think what if she is the one? How would I know?