ok VAder
have you read WATs quick guidelines yet??
if you have you will see that throwing her out or you leaving is NOT a good idea!! You are then simply throwing her into the OM's arms.
You have some good evidence so far ..get anymore or is she now onto your recording phone calls?
If that is all you can get plus obserevations by your friends at work then the first thing is to expose the affair to HIS the OM's wife.
DO NOT INFORM YOUR WIFE you are doing this or warn the Om ok?? He will simply say to his wife this bloke at work is crazy I had to tell him off & he said he would say I was having an affair with his wife at work. etc etc
Second thing is to be prepared that your ww is going to be angry you have messed with her affair. DONT argue ...use a technique called Reverse babble to deflect her attacks.
It is designed to throw the WS off track. They are temporary attempts to confuse their already confused yet stubborn mind on the A issue. If they insist on having the A at all costs, you have nothing to lose if at least they don't enjoy it because you have put such doubts in her mind.
See
Reverse Babble Now third ..STOP TRYING TO CONTROL HER because you cant & all you are doing is driving her away. Your own insecurities in this area are complicating a already bad sit, so stop it now.
Instead find out her most important 5 needs - and try to meet them no matter what. Read Plan A ..this is the key to it ..meet those needs by changing YOUR behaviour so she sees the man she married not the control freak who is driving her away. And make sure your changes which make you attractive to your w are permanent
Fourth ..even with your imput to the M and contribution to its current situation ..you are NOT the cause of her affair regardless of what she may say. This action was your wifes choice, clearly and solely.
Now it may have been only a EA so far - emotional affair - and not gone into a full physical afair - but an affair is an afair is an affair ...regardless so expect all the issues you read about and be prepared for them.
I think thats enough for now so read read read & fill those needs and stop the controlling ....you can do it Vader BUT there is no quick fix ..just hard work.