Seven weeks must have been excruciating for you! I, too, would question the T's competence. Perhaps she didn't know exactly when she'd be back, but it seems unprofessional of her not to offer you some kind of plan, like a tentative appointment with a promise to confirm or reschedule by, say, August 15.

But, as others have said--and not to excuse her--maybe she's disorganized or she's going through some kind of personal crisis that requires her to be away for so long. Who knows?!

I hope that you hear from her soon. Meanwhile, it sounds like it's about her, not you, so don't blame yourself. Hey, you might get more free help here than you would from somebody too lame to take a minute to read and reply to your email! Best of luck to you!