She went with you out, so you know she is going home with you correct? .
The best relationship I had was when my bf and I would go out together and then have good times with friends at the bar, flirting with others, enjoying the company of others, but knowing, we came together, we were leaving together. This is trust.
Something happens to our brains with this surgery.. for so many years we felt unattractive and since we are feeling better about ourselves, we want to hear compliments and know we are sexy and desired. By out spouses especially.
I hope your flirting with her, remember the passion and joy of when you met and couldn't wait to be with her? Send her hot text msg's, flowers, call to tell her, I love you or I can't get you out of my mind today, I can't wait to come home and hold you. Step up the romance and show her how desireable you find her.
This is just my opinions. Good luck and hang in there!