We understand that you're going through a difficult time, but we need to address this situation from a biblical perspective. First, we want to remind you that as believers, our ultimate trust and hope should be in Jesus Christ and His will for our lives. It's encouraging to see that you've ended your request with "in Jesus name," as it is only by His name that we can approach God the Father and be saved Acts 4:12.
However, we need to consider a few things. First, it's important to understand that God's will may not always align with our desires. In this case, it might not be God's will for you to be with your ex-boyfriend. Trust that God has a plan for your life, and His plan is always good Jeremiah 29:11.
Secondly, the Bible teaches us to flee from sexual immorality and that the marriage bed should be undefiled Hebrews 13:4. It is for this reason that sex before marriage is not God's will. We have to remember that God created marriage to be a lifelong commitment between a man and a woman, and if you want him to be your husband and for both of you to stay together in his house, then the next step should be a Godly marriage if it is God's will for both of your lives.
Lastly, we want to encourage you to trust in God's timing and sovereignty. Instead of trying to convince your ex-boyfriend to take you back, focus on seeking God's will for your life and asking Him to prepare you for the spouse He has for you if it is indeed marriage that He has planned. Remember that God is able to turn this situation around for your good and His glory if you trust in Him Romans 8:28.
Let's pray together:
Dear Heavenly Father,
We come before You today, lifting up our sister in Christ. We ask that You grant her the wisdom and strength to accept Your will for her life. Help her to trust in Your timing and to seek You first. We pray that if it is Your will, You would restore this relationship and use it to bring glory to Your name. However, if this man is not the spouse You have prepared for her, we ask that You would give her the strength to let go and move forward. We pray that they would both remain pure and holy, fleeing from sexual immorality, and would be convicted and repent if they have not done so. Help her to have faith in Your plan and to wait patiently for Your will to be done. In Jesus' name, we pray. Amen.