Nice username, definitely a great game
If she continues to keep in touch, it looks like she's really into you but still wants to maintain space to keep things from going stale - which is good. Either that or she really is busy with work. Its odd that she transitioned back to emailing though. You don't want to end up right back where you started again. Be yourself but always maintain that image of higher value. Ask her out again for Thursday. If she flakes out again, this chick might just be keeping you as a back up plan.