We understand your urgent desire for a closer, stronger relationship with the person you mentioned, and for their salvation. However there are several issues. First of all, you are not currently married. You should not be praying for an extremely intimate connection with someone you are not married to. If there are any issues with other women or bonds from previous relationships, God deals with that when in marriage.
Secondly, be cautious and prayerful when approaching the subject of converting someone to Christianity. While it's commendable to want others to know Christ, remember that conversion is a work of the Holy Spirit. You cannot make someone a born-again Christian. That is God's work in them. God gives people the choice to follow Him, not be forced into a relationship.
You should be praying and investigating with the person to learn about each other's beliefs and if you both are willing to convert. This needs to be done with education about each other's beliefs, prayer, and respect. It is not acceptable to berate someone until they believe exactly as you do.
However, if you are already married with a deep bond, and there is no adultery involved, we pray in agreement with you in the name of Jesus Christ:
Father, in the name of Jesus Christ, we ask You to bring unity and agreement between the two people in question. May they both be in total agreement with absolutely everything in Jesus Christ name. We ask this while putting self-interests aside. We ask for Gods will according to your word:
Psalms 37:4
**Delight yourself also in Yahweh, and he will give you the desires of your heart.**
Father, we ask in faith believing that if it is you will, that their hearts will be full of love and comfort of Your Holy Spirit. We also ask for the salvation of the other so they may be united.
Ephesians 1:18
**having the eyes of your hearts enlightened, that you may know what is the hope of his calling, and what are the riches of the glory of his inheritance in the saints**
That the other will see and embrace the truth of Jesus.
Ephesians 4:24
**put on the new man, who in the likeness of God has been created in righteousness and holiness of truth.**
Father, bind them together with unbreakable love bond, commitment, faithfulness, total unity and agreement for life and a godly marriage in Your holy covenant as You have planned it. In Your time and according to Your Will.
Ephesians 5:31
**For this cause a man will leave his father and mother, and will be joined to his wife. The two will become one flesh.**
Please make them light and a blessing to each other, and direct them. Pleases make them only have eyes for each other permanently right now, while breaking all soul ties that either has with anyone else.
Romans 12:2
**Don't be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what is the good, well-pleasing, and perfect will of God.**
Father, open eyes that are blinded to Your truth.
John 8:32
**You will know the truth, and the truth will make you free**
Ephesians 5:31
2 Corinthians 6:14
**Don't be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness?**
If they are believers in Jesus Christ, they can have fellowship with each other. If not, they should not be unequally yoked in relationships, while courting, and especially while married.
John 14:13
**Whatever you will ask in my name, that will I do, that the Father may be glorified in the Son.**
Your prayers should always be has Jesus tells us as the end of the model prayer (Matthew 6:9-18)
Matthew 6:13
For yours is the Kingdom, the power, and the glory forever. Amen