Seek God in this situation. Pray for your husband and son and do not stop. Let Jesus shine through you to show them grace. The bible is clear about divorce and I pray that you read all the passages. I also pray that you get into a church and surround yourself with people who can encourage and help you at this time.

Lord Jesus, Holy Father guide this wife to do what is necessary to bring change to her home, to love her husband and keep enduring. I pray for her husband, I pray that you act in a mighty way in his life and bring about a life changing situation. Lord Jesus hear my prayer. AMEN.

If he is abusive - then please get immediate help.