Benwa, maybe you could call her and tell her how much you enjoyed talking and would love to grab a coffee or a bite to eat with her sometime and catch up more on her life. Something real simple, without pressure and see what she says. You could wait till next time she calls and that would seem less pursuit like but maybe it's worth a shot. Keeping the connection going in a non-pressured manner can only help. If she doesn't want to get together, she'll tell you directly or indirectly ("can't, I"m way to busy"). You won't be left in the dark to wonder like you are now. Just my 2 cents.
