I wouldn't necessarily say she's leading you on... but she certainly is taking the opportunity to get her needs met, through you...
until she TELLS you (WITHOUT PROMPTING by you) that she wants to work on the M... that she wants to attend the MC sessions with you... that she wants to work on the M because either a) she would like to work on getting those feelings back, or b) she knows she wants to be M and will do what it takes to reconcile...
then as sandi points out... she is not ready... and she could just be testing to see if you are still there for her, in case her plan A doesn't work...