when something like this happens, the first thing that pops up in my head is, "Time is only available if you/they make time". Put some strong efforts into seeing/meeting her and see how it goes. If she can't spare her lunch time to have lunch with you or whatever, time to move on...... This chick use to stay up till like 12 midnight just to hang out with me for a bit (I use to get off at 11pm) knowing she's gotta get up at 6am for work.
****Glad you 2 got things going.... good luck