Damn, sorry to hear that. Gut instinct never fails..
I guess there's a couple of things that may be going on for her:
1. She runs from anything that feels 'serious' - which is why, at 33, she's still very single. Nothing you can really do about that.
2. She, like most 30's women, is all about the LTR. But she's done the maths and knows that the chances of you and her making the longhaul before her tubes dry up are pretty slim. So, she's pre-empting before she gets too involved. Sorry if that sounds crass. Again, not much you can do.
3. You came on too strong for her.
She may not remember what she said when drunk but it was still the truth. You've every right to be p*ssed off that she hadn't spoken to you about it before 'deciding' to dump you.
I was about to type that talking seriously to her would be the best way to go, but I've changed my mind totally. Again, the thing you most want to do is your worst way to go if you want to salvage it or even to move on without feeling dumped. She didn't want to talk to you about what she was feeling so chances are that even if you sit her down she still won't tell you the truth.
I say ignore her and avoid her. Vanish completely. Let her do her exams in peace, and stay the f*ck away from her for at least ten days. Give her a chance to miss you. Same advice I gave you last week, only more so now you know for sure what's going on for her. It's completely the opposite of what I've done in the past and of what my natural instinct would be to tell you, so it's worth a shot, as the opposite never worked. Don't give her a chance to dump you properly - why should you? She already let slip what she'd decided, so why act all nice to her now? Won't solve anything and won't help you.
Do the hard thing - stay away from her, brush off her messages. It's time to get her chasing you, even if it's just because she wants to be the one to have the final word. Don't give her the satisfaction. Ganji time.
bp1974