Anonymous, we are with you in spirit, crying out to our Heavenly Father for your marriage. We understand that you started off ignoring the red flags, and now you face trials of disrespect, disregard, lies, manipulation, and infidelity in your marriage. The more difficult the struggle, the great the victory with the Lord.
Firstly, we must acknowledge that God hates divorce. (See what is below and the verses following Malachi 2:16 WEB.
""Therefore pay attention to your spirit, and let no one be unfaithful to the wife of his youth. 'For I hate divorce,' says Yahweh, the God of Israel, 'and him who covers his garment with violence!' says Yahweh of Armies. 'Therefore pay attention to your spirit, that you don't be unfaithful.'""")
"Therefore what God has joined together, let no man separate."" (Mark 10:9) It is clear God wants marriages to endure and be strong. A marriage is made to work with three people, namely, the husband, the wife, and Jesus Christ. You must be in agreement that God is an active, integral part of your marriage. It is not clear that your husband agrees with this.
There is no magic potion, incantation, or magic words but you are asking us to pray that these women pursuing your husband would be distracted and go away from your husband. However, this is not the solution to your heart's desire for your marriage to work. We should pray for these women but for God to change their hearts, remove temptation from their lives and from your Husband, and for the Husband to be responsible and resist temptation. As the Word of God says, "No temptation has taken you except what is common to man. God is faithful, who will not allow you to be tempted above what you are able, but will with the temptation also make the way of escape, that you may be able to endure it." (1 Corinthians 10:13)
Sometimes a man has so many women pursuing him because he has a multitude of issues such as narcissism, lust, or other abberant psychological behavior. Your words also highlight the issues in your husband's life.
Your marriage is deficient in love and respect, and it must have love and respect going both ways. This is laid out in Ephesians 5:33 (WEB), "Nevertheless each of you must also love his own wife even as himself; and let the wife see that she respects her husband." The wife must respect the husband and the Husband must love the wife. There is nothing mentioned here about the husband respecting the wife, but, fear not, that is mentioned in 1 Peter 3:7, "You husbands, in like manner, live with your wives according to knowledge, giving honor to the woman, as to the weaker vessel, as being also joint heirs of the grace of life; that your prayers may not be hindered." You both must pray for each other and for you to be in harmony with each other. If this is not happening it is worth mentioning and should be explicitly prayed for. You should each be in prayer for each other not so that you can say that you are praying for your spouse, but so that you can warn your spouse and guide them and to protect them from temptation and sin.
Adultery is a sin, and it is a work of the flesh. If your husband is actively engaged in adultery, his heart is hardened.
Let us pray for you.
"Father God, we cry out to you for this marriage and this dear sister of ours. We know you can repair the brokenness and fill the loveless, disrespectful voids of this marriage. By the precious Name of Jesus Christ, we ask you to forgive them both of their sins, resurrect their marriage, and return them to your purposes for it. Help each one to be willing to love, respect, and honor the other. Help our dear sister and her husband to be in agreement that God is an active, integral part of their marriage."
"Most importantly, Lord, we pray for the Husband to repent and be the Husband, Leader, and lover of his family that he is supposed to be. Help him to repent of all of his sins, his unfaithfulness, and his failures, once and for all. We know that your will is to be reconciled to you through repentance, and your will is to forgive. Help him to repent to his family and put all of his efforts into righteousness and holiness and not in furthering his own sinful desires."
"We pray that God will open her Husband's heart, Lord, and give him a desire to seek Your face, mercy and grace. Help him to be willing to seek godly mentorship to find the path you have laid for himself, his family, and his marriage. Help him protect his house from sin. To block pornography, smut, violence, and any such broadcasts from his home. Reconsider the friends he has and who he is willing to spend time with. Help them all repent and be lovers of righteousness."
"And Heavenly Father, we hold up these other women to you. We pray that their hearts will be changed and that temptation will be removed from their lives and from our dear sister's husband."
"Lead both our Dear Sister and her Husband to godly counsel so that reconciliation will be possible. Let us not grow tired in praying for them both, but let us pray that they both be reconciled to each other and to Jesus Christ."
"Thank you Heavenly Father for what you will do. For We know you are a Holy, Righteous, and Loving God. Shower this marriage with your grace and healing. We trust you and your promises, Lord."
"In Jesus Name we pray."