Please don’t involve your children. Children need both parents whether the parents are together or not. You and their mother will always be their guidance throughout their lives and that will never change. You and your future ex can not be replaced by any other person. The pain of a relationship breakup is one of the greatest known to us as human beings. The hurt , resentment, anger, jealousy, these are things Satan needs to drive a permanent wedge between you and your children.....he thrives in chaos.
I know it hurts, I’ve been through it too. The best approach is to keep your mouth shut to your children about their mother. It’s easy to lash out in pain and get that simple gratification for such a short time, but it only leads to more crosses to bear later. Be a strong man for your children as they look up to you. Let them know that you will always be available to them and whether you are with their mom or not will never change that. Let them know that your love for them never waivers, as our Fathers never waivers for us as His children. We make mistakes, we always will.......but we can recognize those mistakes and become better parents for our kids. Acknowledge your pain, find forgiveness, and be that father your kids need.