It is a long road. Buckle in. I hope it works out for you. Mine didn't. I have been to hell and back more times than I can count. I have had chronic insomnia a couple times for months on end which developed into anxiety about the insomnia. I am just nearing the end of a 3 month stretch. But it does get better over time. There are high's and lows. If I can impart any wisdom from the last 3 years of my hell is this:
You need to learn how to stand on your own to feet. Without a girlfriend(if the marriage doesn't work out). You need to find how to fuction without a wife. This place helps you prepare in case.
You can't change her. You can't control her. You have to learn how to live your life without much of the control you used to have. The only way you make it through is when acceptance comes of your situation. My W moved out a year ago.
We split time with the kids. One of my biggest issues now that the rebound romance ended is how do I live on my own 4 nights a week. I never did the GAL'ing that I was supposed to do back then. You need to figure out how to do that. It is what saves you in the end if it does end. If it doesn't maybe it isn't too late for your W to see the new you.
Don't argue in front of the kids.
I don't wish what you are going through and will go through to my worst enemy. Make sure you see a therapist.
Stay strong.
Remarried 6 mo S 12 S 13 S 16 SD 12 SD 16 SD 17 SS 19