You know... that's HER problem if it makes HER feel uncomfortable that you are wearing YOUR ring... that's HER PROBLEM... not yours. The decision to wear your ring is yours and yours alone, not hers. PERIOD. I would have just said, "I'm sorry you feel that way." or even better yet... "Oh?"... say nothing more. The only reason she feels 'uncomfortable' is because it's a big freaking reminder in her face that YOU ARE STILL MARRIED. Too darn bad for her that you care enough to make your marriage first and not some selfish ego.
I hope you have a good trip! Try to relax and have fun with your D.
