Best answer? Detach and do not think about when she returns. If she begins a conversation and wants to tell you about Vegas, she will. If she does not want to talk about it and you ask, how does that help you?
Just wait and see, then play it by ear. Planning is not detaching.
Me: 42 W: 32 Married 7 years together 8.5 S1: 7 S2:7 Bomb #1: 09-16-13 Recon #1: 11/13 A discovered 04-03-2014 W filed D 05-19-14 but never served me I filed D 12-02-2014 S 05-31-14 Divorced 5-19-16