OP's ex already was a single mom. Her kid grew up in a broken home with a dad who cheated constantly (according to the OP). Now mom's a cheater too, bawling her eyes out at night because she's single once again. I'm sure this kid has a bright future!
Now another kid is about to go through the separation of their parents thanks to the suggestion that OP drop a nuke on the wife that her husband "emotionally cheats".
So sad that kids are involved in this. I know that GAF loves a good trainwreck thread but if this info was made known in the first post, I really doubt OP would have gotten the encouragement that he did.
Dump her? Absolutely. But "reveal the truth" to the wife? Where the truth is zero sexual contact, but rather personal, intimate conversations between two people who live in different countries? When a kid is involved, "beyond a reasonable doubt" needs to be the standard. In my humble and meaningless opinion, this thread has encouraged truly disgusting, immature actions that have changed a child's life for the worst.
I'm not sure what you mean by "beyond a reasonable doubt." Sex is not the only way to cheat. If you were right then the wife wouldn't have cared.