IMO, I would NOT have a serious R talk with her right now. Especially on the heels of her coming back from her party-time.
My H had a similar out-of-town 10-day party spree last October, two months before we were going to be D. I remember him coming back to his apartment and not even calling me for a day or so.
He told me last night that he had been invited to a Halloween party the night he came back from his vacation and he chose not to go. What if there had been a serious R talk instigated from me right then? It wouldn't have drawn him to me.
I would recommend doing your own thing, being wondeful you, and not instigate anything. Let her be curious about what you were doing while she was away. She has a lot to think about right now.
I'm sorry it's so painful. I really do understand.
Me54/H47 '08 H is "done" March '12 H moved out Brink of D, December '12 2014 totally reconciled! ...... "I firmly believe in the...absolute possibility of marriage renewal." Jim Conway