All the signs are there... the lies, the rebelliousness, the dissappearing acts, the adamant attitude that the marriage is over and disrespect for your history together... its ALL there.
I am going to say this, and you need to hear me.
Letting her walk all over you right now is NOT going to bring her back.
I am assuming you are HERE becuase you want to save this thing.
Despite your controlling past, despite your not trusting her in the past, DOING the OPPOSITE while she is in an AFFAIR is NOT going to make things BETTER... TRUSTING her and being NICE to her and letting her do what SHE WANTS is going to make things a LOT WORSE... for you AND for her...
You need to cofront OM in his home with his wife and tell him to STAY AWAY from your WIFE...
I know its going over your wife's head, but you need to do it.
You need to get used to your wife disrespecting you until she's clean.
Being NICE is NOT helping you right now, it's HURTING you and your chances of her coming BACK.