Ugh Choco, sorry about all the stress. You are doing great though. Stay strong.
If nothing else, it seems like your W having this EA/PA with someone 17 years younger is bound to fizzle out sooner rather than later. It will then be up to you to decide if you can live with that history.
And let me tell you, that can often be the hardest part. My H and I are through the worst of our own storm but the after effects are always hovering under the surface. They never fully go away. I can see how people just throw in the towel after a while. It is so hard sometimes.
But you know it will be an uphill battle. Just be realistic and work on yourself. No matter what happens Choco you are going to be ok.
LFL