You will VERY LIKELY feel obligated or drawn to responding to her negative commentary like "we aren't right for each other" etc... you will feel COMPELLED to argue back
DO NOT DO THIS... BITE YOUR LIP and STICK to your SCRIPT
If she says
"we aren't right for each other"
You reply
". You are contaminating this marriage with an interloping third party - you are CHEATING me and YOU and our MARRIAGE"
Don't reply drectly to negatives... go back to the poitns ou want to get across and REPEAT them as many times as you ahve to in order to get her to STOP the negatives...
The more times you repeat your position while she throws negatives at you the more your point will sink in...
SHE is vulnerable to what you have to say, but YOU don't have to listen to her garbage.. IGNORE IT...
Almost EVERYONE gets sucked into a destructive tennis match of arguing back and forth and it won't help you
AVOID responding to negatives by changing the direction of the conversation back to the safety of the marriage and how much OM is contaminating her judgement right now.
Dont villify your wife, but DO make a point of OM being a HUGE distraction.