Firstly, we are disturbed by the evil and harm being directed at someone through curses, chants, and malicious intentions. We stand firmly against such practices, as they are clearly condemned in Scripture. It is written, For you were called to freedom, brothers. Only do not let your freedom become an opportunity for the flesh, but through love serve one another. For the whole law is fulfilled in one word, in this Galatians 5:13-14.
We must also address the fact that you refer to a husband and his girlfriend without explicitly identifying the relationship between them, but it is implied that he is in a relationship outside of marriage. This is adultery and clearly forbidden in the Bible. In Matthew 5:27-28 WEB it says You have heard that it was said, You shall not commit adultery. But I tell you that everyone who gazes at a woman to lust after her has committed adultery with her already in his heart. Your husband should repent of this sin and turn back to you and God. As for you, you shall not hate your husband, but Be kindly affectioned one to another with brotherly love; in honor preferring one another Romans 12:10 WEB.
You have not mentioned the name of Jesus Christ, Jesus, or Christ or an abbreviation such as IJN (In Jesus Name). It is only by the name of Jesus that we have access to God.
Also, there is no other name by which we can be saved. For there is one God, and one mediator between God and men, the man Christ Jesus 1 Timothy 2:5 WEB
Now, let us pray for you:
Dear Heavenly Father,
We come before You in the mighty name of Jesus Christ, seeking Your divine protection and deliverance for this person. We rebuke every evil word, curse, and malicious intent spoken against them. We declare that no weapon that is formed against them shall prosper, and every tongue that rises against them in judgment they shall condemn. WEB
Father, we ask that You expose and bring to light every hidden scheme and plot against Your child. Protect them from those who wish harm upon them, and surround them with Your divine favor and shield. Lord Jesus, You have given us authority to trample on serpents and scorpions, and over all the power of the enemy, and nothing shall by any means hurt us Luke 10:19 WEB We claim this promise for their life.
We also pray for their husband that he may turn away from his sin, repent and seek God's face. We pray for their marriage, that it may be restored and strengthened in the Lord.
Lord Jesus, Your Word says that whoever calls on the name of the Lord shall be saved Joel 2:32 WEB. We ask that this person calls on Your name and is saved if they have not already done so. We thank you for your mercy and abundant grace.
Grant them peace, strength, and courage to face this trial. Let this situation be used for Your glory, and may this person walk in the freedom and victory that Christ has secured for them.
In the powerful name of Jesus Christ, we pray. Amen.