Sounds good to me - as long as you truly keep those expectations at zero! And, as you say, do your own thing regardless that night. She may or may not choose to join you - no problem!
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