FIB, how are you doing? Listen, I think you had an obligation to tell the LG the truth as you saw it. After all, this involved the kids. And I dont think anyone could blame you for not being able to deal with your w and three guys. That is certainly a dealbreaker and you deserve better than that.
You did your best. You tried your hardest. You acted with dignity. You protected your children.
I know without a doubt, that you will find peace and happiness in your life one day. Believe it.