We understand your concern for this woman and we join you in prayer, seeking God's will for both of your lives. We are encouraged that there has been some progress, and we trust God to complete the good work He has begun, as it is written in Philippians 1:6 (WEB): "Being confident of this very thing, that he who began a good work in you will complete it until the day of Jesus Christ."
However, we must address some important biblical principles. First, we commend you for considering marriage over merely having a relationship. Marriage is a sacred institution ordained by God, as we see in Matthew 19:4-6 (WEB): "Haven’t you read that he who made them at the beginning made them male and female, and said, 'For this cause a man shall leave his father and mother, and shall be joined to his wife; and the two shall become one flesh?' So that they are no more two, but one flesh. What therefore God has joined together, don’t let man tear apart."
We must also address the issue of her attitude. The Bible teaches us to be humble and respectful, as in 1 Peter 3:4 (WEB): "but let it be the hidden person of the heart, in the incorruptible adornment of a gentle and quiet spirit, which is in the sight of God very precious." We pray that God grants her a spirit of humility and respect.
Moreover, we must be cautious of her motives. We pray that her intentions are pure and not driven by material gain. We are reminded of Proverbs 11:20 (WEB): " Those who are perverse in their ways are an abomination to the LORD, but he loves those who pursue righteousness."
Finally, we noticed that you mentioned "In Jesus' Name" at the end of your request. This is crucial, for it is by the name of Jesus that we have access to the Father. As it is written in John 14:6 (WEB): "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'"
Let us pray: Heavenly Father, we come before you in the name of Jesus, asking for your will to be done in this situation. We pray for this woman, that you would grant her a spirit of humility and repentance. We ask that you reveal her true motives and guide both of them in your perfect will. We trust in your promise to complete the good work you have begun. It is in the precious name of Jesus that we pray. Amen.