They all say that.
These are your goals right now:
1.) Preserve your love for your H, even though he has seemingly lost his mind
2.) Preserve yourself and protect your son
3.) Put pressure on the affair
The point is, if your WH does decide to make poor choices, and you are left to be a single parent, you will be kicking yourself if you short change yourself on support, custody, etc.
And, how can you possibly legitimize lying on the support paperwork. Right is right and wrong is wrong. PLAIN AND SIMPLE. I would not recommend this. Your husband thinks it is normal to be lying on all of this stuff, because he is in a lifestlye mode of what "feels good" or what is "easy" not what is right and truthful.
Bottom line is this. Your WH wants to deflect any blame for the pain your son is feeling onto you. But be real about this.
Is your son hurting because you do not want his Dad to have a girlfriend? Is your son hurting because you are trying to secure his future, and make sure his basest needs are accounted for? Or is your son hurting because his Dad is getting uncomfortable with what the reality of his illicit affair would mean., financially, emotionally, etc.
NO.
He hurting because your WH chose to have an A and leave the family.
You do not own that. PERIOD.
Get your son into counseling. Sometimes your son's school will even have some counseling available to him there.
My son was hurting immensely, and still is. He knew what was going on and was oscilating between hating his Dad and never wanting to see him again, and loving his Dad, and wanting him so desperately to come home.
It does get better....really it does. I thought I was gonna not be able to breath anymore I hurt so bad. I am surviving, and glad I stood my ground for what was best for my family (because my WH never did come to his senses...and I would have regretted not taking the steps I needed to in order to protect my children).