Lane, Sorry your here but u found a new home for now if you read my story about a year ago I felt the same way I also questioned many of your questions how do we go dark well unfortunately we can't but we can control our emotions in front of them. You must treat W like a stranger or like someone you will do business with nothing more. I have 3 young kids also.
So first thing please please protect your finances please no if buts or what and second get your kids custody because W can come anytime and use your kids as pawn when W doesn't get her way. I know what your thinking W wouldn't do that well read my thread my W did something's I never thought an evil person would even do.and 3rd you going be kids super hero so put your dad cape on and never take off
Am here if you need advice my case went as far as GAL, kids got a lawyer to speak for them is hard to tell what W you have there is moments I have a MLC sometimes a WW so we will never know but my W met a coworker also said they where just friends then W said I can't have female friends now it was a mess well little to know OW is 26 W is about to be 38 OW no kids and lived with her parents now they have a home together it gets worse before it get better so please prepare yourself.
One thing never let W see your emotions please even if she says am pregnant trust me our W or H will say some crazy [censored] makes you think your going crazy. Always take care of yourself first eat well, sleep and GAL with kids I am in your shoes so I GAL with kids we go everywhere free events or anything but never leave your kids because if you think your hurting your kids are in worse shape.
Not sure if your religious but churches do family group you don't need to be a church member get all the help you can emotionally. Lots of therapy for you and kids this feeling is going be a hella of ride and our ride is long. There's days am good I feel I am going to move on and there's days it feels like it happened yesterday but I know this will not happen overnight it was 10yrs for me with 3 beautiful kids we adopted and we wanted together now W regrets everything so please stay strong W will say some pretty horrible things and lies so you will have to be the man of steal.
In my prayers my New friend
At BD Lesbian marriage Me39,W36 S9,D9,S8 adopted all three Together almost 10yrs Bomb Drop - April 2017 W movedout - May,2017 OW June,2017 Currently 2018 Me40, W38 S10,D10,S9