I think you have let her get her own way for so long that now she expects it. Shes the dominant one, your the passive one. Your wife doesnt respect you, shes frustrated and her friends are her only outlet to vent. I suggest you get over what happened on this trip, let go of the resentment and come up with a plan on how your gonna fix your marriage. Let her know what your unhappy with in a calm way, just stick to the facts "i feel you dont respect me as a man" is a good place to start and "i feel that their is an unequal balance between us coz you (her) have far more control". Learn to communicate and resolve issues quickly. If you cant fix it together then go and get some external help. Good luck