3yearsf, it doesnt sound like your wife has that easy of a schedule either. Its not like she is sitting around eating bon bons. She works and shares in child.raising activities.
I think the tit for tat regarding chores and child rearing is not healthy for anyone. Especially your son. They sense this. If that is your issue, it easily workable. But if the issue is an active affair, lying, and gaslighting not so much.