“The Horns of a Dilemma”. Interesting way to frame your current position. I’m assuming you perceive your horns to be (a) remaining married to an unremorseful cheating wife who continues to lie, and (b) divorce. I do think it’s worth examining this a bit. Traditionally this metaphor describes a choice between two undesirable alternatives, which presupposes knowing the pros/cons of each alternative and determining that each is in fact undesirable. I don’t believe that is your situation. I think your current situation is an example of what some call “analysis paralysis”, others refer to as “the Devil you know versus the Devil you don’t”, which is precisely the conundrum that led you here in the first place.
On the one hand, there is the infidelity. I’m one of those who believes there are degrees of betrayal, some worse than others, and that the cumulative impact informs this calculus. In your case, there are the known elements of the A, which are awful enough: the playing house with the AP in the presence of your kids (to the point where your daughter was uncomfortable); the planned unprotected sex in your own home; the fact that she decided to do this with a man who was/is entwined in your quotidian existence, assuring you the pleasure of re-living this experience virtually every time you try to be a father to your son; and the installation of a gaudy horcrux of the A into your home in a manner that was cruelly mocking and which you had to personally remove. There was the extraordinarily (even by SI standards) cruel and prolonged gaslighting and blame-shifting in the aftermath of Dday. There was the manipulative use of religion and MC to encourage rug-sweeping. Most of all, there remains the stubbornly defiant dishonesty about the scope of the A which, by all appearances, your wife intends to maintain to her grave. I agree with nekonamida that this reflects a fundamental lack of remorse.
Is a divorce really a disagreeable alternative? It is an unknown. I believe that, because it is unknown, you view it as undesirable. Perhaps your subjective view should be the end of the analysis, although if I were a cynic I’d suggest that the recent decision to pursue a Catholic catechism is a (possibly subconscious) construct to fortify a choice to remain married. By the way, and without intending to TJ or engage in religious dispute, I believe it is logically fallacious to profess to adhere to both ecumenical Christianity and Catholicism. You’re either one, or the other, or neither.
But I digress. As to divorce, I wonder if your hurdle is the concept of becoming a divorced man (in the abstract), rather than the nuts and bolts of whether the specific divorce you could arrange with your WW as co-parents of your son would be an untenable existence. Divorce can feel like stepping out of that airplane for the first time. No matter how many times you’ve checked your parachute and repeated your training, that first step is terrifying.
I know it’s been stated before, but I’d remind you that a nominally “intact” but dysfunctional family can be worse for a child’s emotional development than at least one functional parent living single and having part-time custody. You have stated that you work in concert with your wife to ensure your son does not see a dysfunctional family. Perhaps you succeed in this. Yet we know that children see and understand way more than their parents think they do. Your son has confronted you directly about the ban on playing with the AP’s son. At the very least he knows there is poison between you and your wife that involves the AP’s family. I’d put money on it that he and his sister have discussed more that they let on.
In other words, I don’t share your view that divorce is necessarily a horn, nor that you’re in a dilemma. If I were to use a metaphor for your circumstance, I’d choose “Hobson’s Choice” – as in, that is what your WW is offering you.
I’m not suggesting that the choice is necessarily the wrong one for you to make, by the way. Many husbands have it worse in marriage than you do, including husbands where there is no infidelity.
I am suggesting, though, that you’ve been wrangling this same choice at least since you came here in August of 2019, and I believe really since at least about the start of 2017. More than 4 years. Last Autumn you were resolute. Then came Christmas. Then the heart scare. Then the ‘vid. Life stuff. There will always be life stuff. Every married person who ever divorced did so in, around, and among life stuff. Meanwhile, remaining mired in analysis paralysis is irrevocable in that the linear time that passes you by cannot be recovered.
When you first came here, I suggested that you look yourself in the mirror as you stare down your own mug and imagine what your reflection will say to you down the road if you allow paralysis to continue trapping you into inaction. Does the Thumos looking you in the mirror this morning thank you for the past four years since you shared a morning glance on April 13, 2017? What will the Thumos gazing at you on April 13, 2022 say? April 13, 2025? 2031? If I recall, you’re around 50 years old at this point. Maybe 55. Young enough to pursue a meaningful second life partner if you wish, with time for a little sowing of wild oats in between. Just saying.