Roll over your cares on the Lord for He cares for you. Pray that the Holy Spirit takes over your life and his life. Even if it is destined for You two to be separated His Will is better than the Will of the man. No one can separate what the Lord has joined together, so if God has joined You together You will not be separate, at least not for good. Let God drive your life. Surrender your Will to Him. Ask Him, Lord, what do You want me to do this day, who needs me today? What can I do for myself today to make myself happy not expecting from anyone else to make me happy? God, is this relationship your Will or the Will of me and my partner? Will this marriage be a blessing to a kingdom of God? Are we loving ourselves or each other more than You, Lord? What is your Holy Will, Lord? I surrender to your will now and forgive me for going ahead of You in any manner and direct my paths. What is the lesson that I can learn from this situation? What am I not seeing, Lord? Your God is your first fiancée and your first husband. So start from this point and you will be on the right path no matter what will be the outcome. Your husband Jehova is jealous and He will not let You end up in wrong hands or doing wrong things without consequences. HE will correct You and this is the sign that you are a daughter of God.
Bless yourself even your partner no matter what and let it be His Will and not your Will or the Will of your partner.
I don't know You, if You are really saved/born again: if not, find the prayer of salvation on the internet and pray it from your heart (because only then you will be a daughter of God) God bless you.