Let your kids go. Let your sons fall down and pick themselves back up. Let your loneliness be filled by someone other than your kids. Let your new partner into the starting lineup.
The loss of my kids as a 30% dad was not my choice. The ongoing bs of resentment and entitlement was not about me. My ex-wife's anger and resentment, here 11-years later, is 100% self-inflicted.
When divorce with children is your path be prepared for a lot of highs and lows. You can do it. And your efforts will be rewarded later. Your kids will never know what you went through to stay in their lives, but they will appreciate your presence and loving guidance well into adulthood.
Let go of your anger in any way you can, that does not involve your kids or your ex. And rebuild your best life by focusing on your actions and words. Move forward towards the hope that your kids will be healthy and undamaged by the divorce.
Many men get tossed into the deadbeat dad category by their wives who are looking to score the package, regardless of the dad's parenting skills, their loving availability for their kids, and often discounting the dads even if they are the ones who hold down the emotional and logistical side of the household.
Then as our lives spun into the dark void of micro-alienation and bitterness, and as my ex-wife continued to spit vile at me, I began this journey to become positive about all that I was going through.
We can hold on, we can fight/struggle/counsel to make things work. We can sacrifice so many aspects of our lives to try and keep the marriage together. And in this sublimation, we can become separated from our own inner truth, our own listening and responding heart, as we try and compromise and grow and hope for the eventual LOVE we believe will heal us.
It will take a long time for me to rebuild my relationship with the kids, but I will. And they will know the story of this angry divorce saga over time. They will ask about "what happened?" They will ask about the lies.