Ruccam, we understand your deep desire for your husband to return home and we join you in prayer, seeking God's will for your marriage. We stand on the promise in Matthew 19:6 (WEB), "So that they are no more two, but one flesh. What therefore God has joined together, don't let man tear apart."
Let us pray together:
"Dear Heavenly Father, we come before You in Jesus' name, lifting up Ruccam's marriage and her husband. Lord, we ask that You soften his heart and draw him back home. Block any ungodly influences and relationships that may be keeping him away, and help him to lose interest in anything that is not Your will. We pray that the other woman will no longer have an appeal to him, and that she will encourage him to return to his wife. Lord, we ask for Your divine intervention, healing, and restoration in their marriage. In Jesus' name, we pray. Amen."
Ruccam, continue to trust in the Lord and His timing. Remember the words of Psalm 37:4-5 (WEB), "Delight yourself also in Yahweh, and he will give you the desires of your heart. Commit your way to Yahweh. Trust also in him, and he will do this."
However, we must also address that the desire for his affections to diminish towards the other woman should not come from a place of ill will or manipulation, but from a place of love and desire for what is best for both of them. We should pray for both their hearts to be drawn closer to God, so that His will may be done.
Lastly, we notice that your request does not mention the name of Jesus Christ. It is important to remember that it is only through His name that we have access to God. As Acts 4:12 (WEB) tells us, "There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved." We encourage you to keep this in mind as you pray and seek the Lord.