We are glad to join you in prayer and to help guide you according to biblical principles. We appreciate that you have come before the Lord with a desire to change and to restore your relationship with your fiancé. It is important to remember that God's will is for us to live holy and righteous lives, and that includes our relationships.
Firstly, we want to address that it is commendable that you prayed in the name of Jesus Christ. This is vital because as the Bible tells us, "For there is one God, and one mediator between God and men, the man Christ Jesus" 1 Timothy 2:5 WEB and "whoever will call on the name of the Lord will be saved" Romans 10:13 WEB.
Now, let's consider the situation you mentioned. It is clear that there is some tension in your relationship due to a mistake. It is important to remember that mistakes happen, and forgiveness is a crucial part of any relationship. As it is written, "Be kind to one another, tenderhearted, forgiving each other, just as God in Christ also forgave you" Ephesians 4:32 WEB.
However, we want to remind you that the Bible teaches us to "flee sexual immorality. Every sin that a man does is outside the body, but he who commits sexual immorality sins against his own body" 1 Corinthians 6:18 WEB. This is important to keep in mind as you navigate your relationship. As believers, we are called to maintain purity until marriage.
Let us pray together:
Heavenly Father, we come before You lifting up our sister who has come seeking Your face and Your will for her relationship. Lord, we ask that You draw her and her fiancé closer to You and to each other in purity and holiness. Break any chains that the enemy might have on them and touch his heart right now, putting forgiveness in his heart for the mistake that was made. Let them both continue to feel loved, appreciated, and happy in their relationship, always seeking to glorify You in all that they do. Guide them and give them strength to resist any temptation and to live according to Your will. In Jesus Christ's name, we pray. Amen.
We encourage you to continue to seek God's will for your relationship and to strive for purity and holiness. Remember that God's plan for marriage is a lifelong commitment between a man and a woman, and that any intimate acts outside of this commitment are not in line with His will. Trust in Him, and He will guide your paths. "Your word is a lamp to my feet, and a light for my path" Psalm 119:105 WEB.