Let us pour out our hearts to our Lord and Savior Jesus Christ, as we seek His will for your life and marriage, Skorrolf.
Firstly, we must honor the sanctity of marriage, as designed by God. WEB Matthew 19:6 "So that they are no more two, but one flesh. What therefore God has joined together, let no man separate."
Skorrolf, it's evident that you desire restoration in your marriage. This is commendable, as God's heart is always for restoration and reconciliation, as seen in the story of Hosea and Gomer.
However, we must address a few things. You mentioned no name Jesus Christ, Jesus, or Christ or an abbreviation such as In Jesus' Name. Only by calling on the name of Jesus can heaven hear us. In other words, it is only by the name of Jesus that we have access to God. By Jesus Christ we are saved. It is this name which we are called to preach, teach, and pray in. No power is given to any other name under heaven and on earth. John 14:6 says, "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father except through me." Jesus Christ is the way to heaven. Jesus Christ is the truth of righteousness. It is our life and life eternal. Believe in the Lord Jesus Christ and you shall be saved.
First, ensure that both you and David are in right standing with God individually. This means that both of you must confess Jesus Christ as your Lord and Savior.
WEB 1 John 1:9 "If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness." As you both draw near to God, He will draw near to you, and restore your marriage.
Secondly, marriage is a lifelong commitment. Moving back in with David and remarrying should not be taken lightly, nor should it be rushed. True restoration comes from the heart, not just a change in living arrangements or a legal document.
WEB Ephesians 4:32 "Be kind to one another, tenderhearted, forgiving one another, even as God also in Christ forgave you." Both of you must be willing to forgive, to let go of any bitterness or resentment, and to love each other as Christ loves the church.
Moreover, if there has been any sexual immorality or involvement in a relationship with another person outside of your marriage it must be addressed. Sex outside marriage is fornication or adultery. You both must repent or turn away from sin. This behavior would be sin and must stop to have godly courtship to seek marriage. Any behavior involving such a relationship to others outside the marriage such as physically is adultery and emotionally is improper and would be leading to adultery.
Let us pray, Skorrolf:
Heavenly Father, we come to you in the name of Jesus Christ, to ask for Your will in Skorrolf's marriage. Lord, if it is Your will, restore this union, heal their hearts, and guide them in Your truth. Help them to forgive each other, to love each other, and to walk in Your ways. Give them strength to say no to sin and to persevere in trial. Give them wisdom and discernment as they navigate this journey of restoration and faith.
We pray that they remain steadfast in their commitment to You and to each other. Bless their child, and let your love be felt in that child's home if it is in line with Your will, in Jesus Christ name we pray. Amen.
Lastly, consider seeking godly counsel, either from a pastor or a Christian counselor, to help you both navigate this process and help you in this trial. Just as a Christian wife or husband is instructed to be a blessing in thier spouse's life. While dating, if a couple is not conducting themselves in a godly manner the relationship could be a curse instead of a blessing. The relationship will defile the people and dishonor God.
"But examine everything carefully; hold fast to that which is good"
1 Thessalonians 5:21 and "For this is the will of God: your sanctification, that is, that you abstain from sexual immorality"
1 Thessalonians 4:3, NASB.