Heya, so here's mah story.  I was with my wife for 15 yrs, married to her for 10.  We have 2 boys together.  I've always had a hint that she was curious but never expected her to come out completely as gay.  I'm a Huge ally of the LGBTQ community and fight for equality.  Might seem insincere in saying this, many of my best friends throughout the years have actually been gay men and women, and all throughout the spectrum.  An ex of mine was the Queen fag hag at SJ pride one year and it was awesome!  I digress.  I can really pick em though, as 3 out of my 4 long-term exes have either turned out gay, or cheated on me w other women.  I'm a serial monogamist and don't share very well, so even when my wife said she was bi and wanted to have flings w other women, it was tough, even though many guys would be into letting that happen, thinking its hot.  I Should have taken that as the beginning of the end, but naively I pushed on with the blinders.  It's been a few weeks now that we had the 'talk'.  She literally said she wants to have her cake and eat it too, by keeping the fam together, staying best friends and living in the same house.  I'm absolutely crushed, obviously, but think down the road it could work.  So we would be 'platonic life partners', co-parenting our kids and always living together or right next door, while dating other ppl.  I just don't see this staying cleanly uncomplicated.
That said, I'm insecure about if there actually Will be a split, and want to insulate my self, financially, emotionally and in regards to keeping the kids close and those rights.  So any advice from divorcees as far as what they wish they would have done, even if the split was amicable?  Also, any 2 cents on if this has been feasible for anyone in any similar form?
Thanks so much for listening, ppl, this has just been cathartic in itself.  Have a better day than I'm having lol