First of all, he can't use God to justify his truth, because it isn't Godly for him to sleep with another man's wife; that's adultery and covetousness, neither of which are "the gift of freedom that God promises us." Secondly, he has no room to criticize anyone for being a slave to societal code, because he was following code and being slave to society's creation of open marriage and the fantasy he constructed for himself when he sought and was allegedly granted permission to be in a relationship with Jada. He broke whatever code or rules there were between them and now wants to cry about codes existing in the first place. He's just mad about Jada going back to Will at the end of the day... again, allegedly.