Friend – I have always seen only two ways to get out of infidelity, and that is divorce or reconciliation.
Sounds obvious, but IMHO probably by far the most common and IMHO WORST outcome is rug-sweeping of some form. Happens even when people divorce, but remain emotionally involved with their ex, as if divorce was an alternative form of marriage.
At SOME POINT you need to determine what path you want, and which path is open to you.
Although it’s probably best to reach that decision soon (seeing as it should eventually lead you to healing) then it’s BEST to reach that decision knowing it’s the one that’s right for you and available to you.
Your last post confirms what I thought, and that is that you probably haven’t reached that point yet.
Why did I think that? Well… just like your wife’s affair and her trickle-truth is following a pattern, your reaction is so too.
I’m going to suggest the following – and point out what I believe the biggest risk with this suggestion:
Unlike many here, you are dealing with a past-affair. It’s not active. She’s not sneaking out of the house, nor does it seem like there is contact between them. The affair won’t get "worse" because you have to be vigilant and might catch them at the local park after dark.
Whatever happened has already happened. I guestimate you have about 80% of the valid "truth". What you have left to learn will definitely HURT, and it might be what determines if you want this marriage or not. But it will be TRUTH. It will either give you a clearer picture of what you might be reconciling from, or give you more peace with a decision to divorce.
Since the affair has already happened, and since you "only" have a fixed pile of untruths to reveal, then AS LONG AS YOU ARE CONTENT there isn’t much harm in YOU deciding when YOU make your decision.
You aren’t a spring-lamb. You have been around. You probably know that the worst decisions are the ones made when angry, confused, or on unverified data. We sometimes need to decide right away on assumptions. Like if your smoke detector goes off in the middle of the night, you would rush your kids out and phone the FD based on the assumption there is a fire, rather than ensure the detector isn’t faulty. But here – in your instance – you have the benefit of TIME.
So my suggestion is this:
Take a calendar and circle a date – maybe 30 days from now.
For that time you are not making/revealing any non/hard reversable decisions on your future. If you can envision it, then set a reasonable and attainable goal for that date. One I could suggest is that at that date you have a sense that you know the truth about the timeline and events of the affair.
This gives you time to emotionally heal. Gives you time to evaluate if your emotions are leading you the right way. Gives you time – because you care – to push WW towards emotional support AND build up her support (empowering you to choose divorce, if that turns out to be your eventual choice).
As far as MC goes, then yes – we generally don’t recommend MC early on. But you could go there with a mission:
"I am not decided on if I can work through the fact she had an affair. As-is I don’t believe I know what took place, but my imagination has created a scenario that I don’t like. For me the goal of these sessions is to get to the truth about what took place.
Her not sharing the truth is to me a clear sign that she doesn’t trust me, but I need the truth in order to possibly remain married. I can only base my decision on TRUTH."
One warning about the MC: If he even suggests the affair was because of the marriage… sack him… Ask him if he would also be telling a rape-victim that the rape happened because she wore a low-cleavage dress…
That circled date? Only need to be accountable to yourself. If you feel at peace with a decision before that date that’s OK. But it gives you the peace-of-mind of having a plan – an agenda – and alleviates the sense of you not doing the "right" thing already.
The fault in my plan? The danger? You really need to be self-critical on if you are rug-sweeping, adapting to a semi-content marriage with unresolved infidelity issues, or actually making progress. The big risk is stagnation. Something that leads to what I described as the WORST outcome.
Finally:
I have been thinking about what to tell your kids. Seeing as they are semi-adult and assuming they know of their mom’s suicide attempt, AND under the assumption that there is risk of her trying again.
I would tell them the truth. But I would do so in as non-judgmental way, and with the expectation that they use the truth to support their mom moving on.
Like:
"Kids. Mom and I are in a marital crisis because she revealed to me a past affair (your call as to the detail). That affair is over and has been for some years, but my suspicions over the years has strained the marriage and it came to a head recently. We are working on how to move on, and there is high probability that I won’t see a path forwards for THIS marriage. However, no matter how I might feel she wronged me then she is and will always be your mom and needs your support in moving forward. Mom and I will deal with our marital issues, I will decide on my marital future, but I expect you to support mom and to do so you don’t have to condone her affair or attempt to punish her for it, or take sides with either me or her. After all she has done for you as your mom, she deserves your support. You know of her recent suicide attempt, and I am sharing this so you understand what caused it, and to enable you to support her in preventing a repeat."