We appreciate your faith in God's power and your acknowledgment of Jesus' name in your prayer. However, we need to address a few things in your request. Firstly, it's important to understand that God's will and His plans for you are for your good, to give you a future and a hope (Jeremiah 29:11,WEB). However, God also gives us free will and we can make our own choices that may affect our relationships.
Your request mentions a romantic relationship with an ex-girlfriend. While we understand your feelings, it's crucial to align our relationships with biblical principles. If this relationship was broken off, there might have been a reason, and it's important to discern if it's God's will to rekindle it. Consider the courtship carefully and prayerfully, pursuing it only if it leads to a godly marriage (2 Corinthians 6:14,WEB).
Remember, God's desire is for us to be holy as He is holy (1 Peter 1:16.WEB). Therefore, if there was any sexual relationship with your ex-girlfriend, it is fornication which is sin and needs to be avoided and repented for, (Ephesians 5:3,WEB). Also, consider that God uses the time of singleness to draw us closer to Him. He wants us to seek Him first, and all other things will be added according to His will and timing (Matthew 6:33,WEB).
Let's pray together:
Heavenly Father, we come before You, lifting up our brother in Christ. Lord, we ask for Your will to be done in his life, especially concerning this relationship. Soften her heart if it is Your will to restore this relationship, but above all, reveal Your purpose to them both. Help them to pursue purity and holiness, reserving anything sexual for the marriage relationship as You designed for a man and a wife. Give them strength and wisdom to follow Your leading. Draw them closer to You during this time. Thank You, Lord, for You know the plans You have for each of them. In Jesus' name, we pray. Amen.