If she's chasing you with messages right now, let her keep it up. She's nibbling at the bait again & if you keep that scenario going she will eventually bite. If you start pumping calls/messages at her before she initiates the contact, then she will back off again. Just keep being nice, calm & patient.
When she starts coming to you a bit more, dont get in a hurry. Wait for her to invite you places & if she doesn't invite you, dont act like it bothers you (you were busy anyway, right?). If you are patient & play your cards right, she will start to give you the signs. Little innocent touches, extended eye contact, etc. Keep the eye contact strong...no looking down or looking away first. Stay strong my brutha!!