You are not alone, precious one
Now, let's forget about what satan is doing and focus on what God is doing. He's working all things out for your good and that of your husband.
He's perfecting all that concerns you. Though you walk in the valley of the 'shadow' (key word shadow) of death, you will fear no evil for God is with you. He will never leave you nor forsake you. And He is not going to leave your marriage.
Let's release all of this to Him together, for we cannot fix this. Only God can. So together we pray...
"Dearest Father in Heaven...we come to you with all that we have and give ... we surrender it all to you. We give this man and wife to you and allow you to make all of the crooked places straight; all of the high places low; and to crush into dust, the gates of iron.
Father, we place this marriage, this precious man and woman into your hands where the enemy cannot touch them. Keep them as the apple of your eye, the very beat of your heart. Take this family's heart and make it your own to have and to hold and to keep from harm's way.
Marriage is your gift to us. And though it comes wrapped in the finest of adorn, we ask that you come and create this couple newly born; born again unto you. Let them have peace, love, joy, contentment in you and in one another. Let there be reconciliation and love that abounds each moment of each day, eternally. In Jesus's name we pray, Amen.