Hmm, I think she upped her game to secure you as plan B...sorry if that stings (and I'm sure you are lovely and desirable too) - but that's my take.
Here's the deal. She would love to go having you say - you're my person too and I'll wait for you. But it would be really bad news for you to do that.
I would simply respond - I'm sorry if you're having a rough day - I enjoyed last night too. I understand you want to move away and I'll rebuild my life as best I can when you are gone. Take care.
No plan B okay??
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus