Sorry you find yourself here. I agree with everyone that it sounds like you W is having at least an EA. The faster you determine this and deal with it the better off you are going to be in the long run.
If your W is having an EA or even a PA you will be competing with a 3rd party. You need to get the 3rd party out of the picture and the only way you can do that is to know there is a 3rd party.
Your wife has told you all the things my W did. She also has the same behavior mine has. They will turn it on you that you are jealous or controling. I felt bad for the longest time not trusting my W. Come to find out I was 100% correct and shouldn't have trusted her.
I think deep down you don't want to admit that your W might be having an A (EA or PA). However, I would bet that you have thought it and might actually have a gut feeling that something is going on. Time to prove that gut feeling and get a plan together on how to address it.
As long as a 3rd party is around and without boundaries your W is going to cake eat as long as she can.
I am not trying to be harsh here but I kept my head in the sand for to long and regret not listening to my gut feelings.
M 33 | W 34 | Kids: S4, S3 M: 5/28/05 Bomb: 8/22/09 EA: 8/1/09 | PA 12/26/09 W L: 10/21/09 M L: 11/16/09 | 12/09 to file SA W & Boys Move Out: 3/14/10