I am sorry you are feeling this pain right now. To walk in BS shoes is horrid and it's always especially horrid during this time of year.
Look, you have remained honorable during both marriages. You are looking back and feeling as though the two WH you had are now doing swell. I know it doesn't feel fair to you, because we are taught that evil does not win. And it really doesn't. If they were cheaters when with you, then they are NOT in any relationship that you would value. These are not men that are living a beautiful life. Just as when they were with you, they are STILL lying. Some folks are just good liars and keep up a pretty good facade.
After reading your post, I am mostly saddened about the bond that has been broken between you and your child. Don't let a lie stand between the two of you. You don't have to be victimized by lies of any sort. You can always stand up for yourself and tell your truth.
Get up today and do something for yourself. You can't alter what has happened and you do not have to live with those two cheaters anymore. This is a season when we all have a tendency to reflect. Please think about the good things in your life that you do have. You still have the opportunity to live and love in the present. Right now.
So...reach out today and do something proactive in your life. I don't know the particulars about your son, but don't allow a lie to rob you of happiness. He will be back, because at some point he will want his mom in his life. In the meantime, do something for yourself and put a smile into your own heart. ((jerseycowgirl))