so sorry that this is happening to you and your family. You found a great site full or resources and people that really care.
Peace gave you some nice tips on the new W and that you can't fix her. Only thing I can add is love your kids twice as much.
They will need you. Your W's possible entitlement to have her own happiness will consume her and she most probably will be there less for the kids. You need to do double duty. Hopefully I'm wrong but the mother instinct in most cases seems to disappear.
keep posting and read all you can. The more you understand the more you can be stable for your kids
Take care
M51 XW43 (38 at bd) BD1 MAY 30 2015 BD2 JUNE 25 2015 by text moved out Aug 2 2015 left both Daughters 13 and 15 (now 18-20) Her divorce Final July 26 2016 Last time she saw her kids Aug 2 2015