So, you were hurt, disappointed, felt rejected and disrespected, emasculated, and attacked out of nowhere???
All perfectly reasonable reactions. Did you share your honest reaction with her in a direct way and tell her how you felt? I hope you didn't act as though this sudden change and attack was working for you...
BTW, this stuff about the trip is CRAP on her part. She is scared about being alone with you because of her own guilt. She is finding excuses to avoid an uncomfortable situation.
And, no matter what conversation you had about the plans, I expect she felt coerced into going along with a couples weekend rather than letting you down after all she has put you through... So, it is good that she expressed that.
