I suggest you need to be honest and forthright (but always kind) about the behaviour she exhibits towards you. Identify to her that you do not appreciate it and that it is hurting you. If she is doing this in front of others, ask your wife to come with you and excuse yourself from the group so you can express to her your concern about her behaviour in private. She needs to answer to you as to why she is treating you in an unprincipled manner. You need to identify this to her and ask her why. If you never tell someone, they may never know ... or they may feel you just don't care. If she continues to exhibit the unsupportive, unprincipled behaviour, suggest to her that you feel the 2 of you need to seek outside help with the communication part of your marriage.
You could also tell your wife that you need to take some time and go away for a few days or a week or two. Tell her you have some things you wish to speak to her about regarding the marriage and your future together but that you need time to sort them out. This will give her time to think about things as well. Perhaps during this time you could seek your own counseling.
I strongly suggest the two of you get to a marital or communications counselor together. The WTS is going to destroy your marriage if it hasn't already done so. She is not exhibiting principled behaviour in the marriage. To me, this says she doesn't want the marriage... OR she doesn't realize the extent and effect her behaviour is having on the marriage. Either way, you need to take some steps in order to affect some change or things will only get worse.