She will say the most horrible things about you, true or not, to others to justify what she is doing. She may have family and friends who reinforce her feelings and even amplify them to further drive a wedge between you. That is how my W got to the point an EA was OK. She had a serial adulterer friend who coached her on how to hide things and of course reinforce why I was a horrible person and the reason she was unhappy. Same with the family. Your W's head is so full of BS about you she actually believes you are the devil. She is on a high with this new A where none of the OM's warts are visible. At some point that will change. The more you detach, the quicker that will happen. Sandi's rules on WW's are the way to go. You have to get the fog of the A out of her head before she will start thinking logically. It really is amazing how selfish and destructive WW's get but they are on an emotional high that blocks out everything. So first step is to follow Sandi's rules to get the fog cleared.
Separate finances, cell phones, insurance, credit cards, etc. Don't finance her A one penny. Work out an agreed child care plan and get it in writing.
Most important, DO NOT MOVE OUT OF THE MARITAL HOUSE!!
Then you have to GAL and make yourself someone only a fool would leave. If things don't work out at least you will be someone you can be proud of.
If there is to be a divorce let her do all the work. Well, at least until you have to go to the last resort strategy to wake her up, but you have a long way until then.
She will lie, complain, be nasty and manipulative. Expect it as her emotions will be all over the place. You be calm, strong and confident. Actions are strong, words are weak, and doing nothing is permission/acceptance.
Me:49 W:45 M:19 T:22 EA confirmed and ended 8/2014 S:19,17 D:9,5