i agree with red sox nation.
she can chose to have her lies, her affair, her secrets. its HER choice and if she chooses these things there is NOTHING you can do about it. period. thats where you are right now. see clearly - her choosing to continue contact with her affair partner is choosing him.
if she chooses to have her lies, her affair, and her secrets ... then a consequence of her choice is that cant have you because you arent going to accept her continuing to violate the promises she made to you (her wedding vows).
yes, i know it is mind boggling that you need to inform your wife that her continuing to have an affair isnt acceptable to you. however, read up on a few of your previous posts because (gently) it isnt just her that needs to accept and understand this ... its you too. you need to accept that her choosing her affair, her lies, and her secrets over you isnt acceptable to you. or ... you can decide that it IS acceptable. in which case where does that slippery slope end ... with her bringing him over to the house to have sex with him while you sulk and watch tv?
where do you draw the line on what is and is not acceptable to you? where are your boundaries? decide and then inform your wife. immediately.
however, i would suggest NOT putting a timeline or deadline on implementing the consequences of her decision. dont paint yourself into a corner.
you can implement the consequences today, tommorrow, next week, or whenever. you cant undo packing her trash and throwing it in the yard whereas you can pack her trash and throw into the yard at any point in the future ... or decide not to do that at all. do you see what im saying? leave your options open.
part of leaving your options open IS going to talk to a lawyer. you dont need to decide anything while talking to the lawyer BUT does provide you with information to make an informed choice at the time of your choosing.
the talk with your wife where you inform her of your boundaries will be a tough one. your wife will flat out refuse. count on it. its a play from the cheating spouse handbook. she will say "lets go ahead and get a divorce then". count on it. another play from the handbook. she will also tell you that she isnt making a choice and needs time to think about it. thats another play and when she uses it be prepared to respond with "not choosing is making a choice, its choosing to continue your lies, your cheating, your secrets, and your affair.
remember that phrase "your lies, your cheating, your secrets, and your affair" ... use it OVER AND OVER during the talk. also keep using the word "choice" when it comes to those things. because she DOES have a choice.
you have to hold firm during this talk. you will need balls of steel. this is the rubicon. its (to hat tip to mike7) chamberlain and hitler. you need to establish this boundary and lay out the consequences.
you cant accept anything less than no contact, ending the affair, and transparency - if you do ... kiss goodbye any hope of a reconciliation. period. it needs to be "all of them". for instance, you cant accept the end of the affair but continuing contact or no transparency. if she offers one or more but not all ... thank her, tell her its a big first step for her, and that it still leaves a few more steps for her to make and then go right back into discussing them. you NEED the end of the affair, no contact, and transparency. period.
if she chooses ANYTHING except immediate no contact, ending the affair, and transparency then tell her "im sorry that you feel your lies, your cheating, and your affair are more important to you than me, our child, our family, our relationship, and your self respect. i wont try to pretend i can understand the thought process or decision making that led to this choice. when we got married we made a series of commitments and promises to each other. your choice to break those commitments and vows by choosing your lies, your cheating, and your affair over me, our child, our relationship, our marriage, and our family pains me deeply. I know that you know what you are doing is wrong and that you know your choice is also wrong. you are a better person than this choice but i can not make you do the right thing and i cant make your choice for you. i can only communicate what is and isnt acceptable to me. your choice to choose your lies, your cheating, your secrets, and your affair will force me to reconsider my commitment to our relationship and our marriage."
the effects of this talk might take a day or a few days to sink in on her. be receptive to listening to her if she wants to talk about it. do NOT waver in communicating over and over that its her choice.
while waiting to see if it snaps her out of the cloud...
STOP having sex with her.
STOP crying around her.
STOP begging and pleading.
STOP bringing up the affair.
STOP enabling the affair by doing things that make it easier for her to continue it.
let her think about these things for a few days. if she hasnt snapped out of the fog after a few days you can then begin to consider the next steps.