This actually is not a teaching of Jesus and was added in - it is painfully missing from the oldest manuscripts, and most common study Bibles will note this fact. Since it is added and not His word, you err greatly to formulate any truth from it.<quoted text>
4 they *said to Him,“Teacher, this woman has been caught in adultery, in the very act. 5 Now in the Law Moses commanded us to stone such women; what then do You say?” 6 They were saying this, testing Him, so that they might have grounds for accusing Him. But Jesus stooped down and with His finger wrote on the ground. 7 But when they persisted in asking Him, He straightened up, and said to them,“He who is without sin among you, let him be the first to throw a stone at her.” 8 Again He stooped down and wrote on the ground. 9 When they heard it, they began to go out one by one, beginning with the older ones, and He was left alone, and the woman, where she was, in the center of the court. 10 Straightening up, Jesus said to her,“Woman, where are they? Did no one condemn you?” 11 She said,“No one,[a]Lord.” And Jesus said,“I do not condemn you, either. Go. From now on sin no more.”]
What was Christ command to this woman concerning the adultery sin in question?
One has to reconcile the whole of His teachings to be true. Mt 19 clearly says the teaching if only for those able to accept it. Jesus upheld Torah, and Moses clearly had direction from God regarding divorce and adultery and fornication. You need to study what Moses taught before you dare think Jesus taught against what God had said is right or justified.
Marriage is a partnership, and it is said in Scripture: "How can two walk together, except they agree?" Things the lady wrote are substantial points. We can desire to be forgiving, but if we are consistently abused by the one person in the world who should be protecting and guarding us, in what is our hope for the marriage? And some parents who abuse allow abuse of the children as well. Abuse, whether mental, spiritual, physical or sexual - abuse is abuse, and anyone who would not help anyone in that situation is not of God.