We understand your concern for your girlfriend and we are here to support you both in prayer. Let us first acknowledge the power of praying together, as the Bible tells us, "Confess your offenses to one another, and pray for one another, that you may be healed. The effective, earnest prayer of a righteous man is powerfully effective." (James 5:16 WEB).
However, we also want to encourage you to consider the nature of your relationship. As followers of Christ, we are called to pursue relationships that honor God and align with biblical principles. The Bible teaches us to flee from sexual immorality (1 Corinthians 6:18) and to pursue relationships that are designed to lead to godly marriages (Hebrews 13:4). We encourage you to pray about your relationship, seeking God's will for you both, and considering how you can honor Him in your interactions.
We also notice that your request does not mention the name of Jesus Christ. It is important to remember that it is only through Jesus that we have access to God, as it is written, "For there is one God, and one mediator between God and men, the man Christ Jesus." (1 Timothy 2:5 WEB). We encourage you to pray in Jesus' name, acknowledging His role as our Savior and Mediator.
Let us pray for your girlfriend:
Dear Heavenly Father, we come before You today in the name of Jesus Christ, lifting up our dear sister in her personal battles. We ask that You would be her strength and her shield, her refuge in times of trouble. We pray that You would give her the courage to face her struggles, and the wisdom to seek Your will in her life. We also pray for Adelphys, that You would guide him in his relationship, helping him to honor You in all his actions. Help them both to grow in their faith, and to pursue a relationship that is pleasing to You. In Jesus' name, we pray. Amen.
We encourage you both to continue praying and seeking God's will, trusting that He has a plan for both of your lives. "For I know the thoughts that I think toward you, says Yahweh, thoughts of peace, and not of evil, to give you hope and a future." (Jeremiah 29:11 WEB).