We appreciate your honesty and humility in admitting your mistakes and taking accountability for your actions. It's important to remember that God is always willing to forgive us when we come to Him with a repentant heart. However, we want to address a few things in your request.
Firstly, you mentioned that you have a relationship with a friend. If this friendship is intended to be or has become romantic, we encourage you to consider it in the context of biblical principles. The Bible teaches us to flee from sexual immorality (1 Corinthians 6:18) and that any romantic relationship should be with the goal of marriage to a believer of the opposite sex (2 Corinthians 6:14, 1 Corinthians 7:39). If this is not the nature of your relationship, please clarify, but if you are in a romantic relationship outside of marriage, we must call you to repentance and change.
Secondly, you asked for Jesus to help restore your relationship, which is commendable. It is only by the name of Jesus that we can be saved or approach His throne of grace to help in times of need. (Acts 4:11-12, Hebrews 4:16). However, we must also consider God's will and His standards for relationships. If your friend is not a believer or if this relationship is not honoring to God, we encourage you to seek God's will above your own desires. Remember, "Do not be unequally yoked with unbelievers. For what partnership has righteousness with lawlessness? Or what fellowship has light with darkness?" (2 Corinthians 6:14 WEB).
We also want to address the fact that your friend has been unfaithful. This is a serious sin and you cannot accept this kind of behavior or think it will go away with some prayers. Infidelity is a grave offense against God and the relationship. It breaks the trust and bond between two people. The Bible tells us, "Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous." (Hebrews 13:4 WEB). Even if this is not a marriage, the principle of faithfulness applies and any romantic relationship must be with the goal of marriage as previously explained. We encourage you to seek godly counsel and set clear boundaries in this relationship. God will never bless or condone such sinful behavior.
Now, let's pray together:
Dear Lord Jesus,
We come before You, lifting up our sister who has humbly come to You with a repentant heart. We pray that You will continue to work in her life, helping her to overcome her insecurities, anxiety, and PTSD. We ask that You will heal her and give her the strength to let go of her fears and limited beliefs.
We also pray for her friend. We ask that You will bring conviction to his heart for his actions and that You will draw him to Yourself. We pray that You will help them both to seek Your will for their lives and that You will give them the wisdom and discernment to navigate this situation according to Your Word.
We ask that You will restore and heal this relationship, but only if it is according to Your will and Your standards. Help them to seek first Your kingdom and Your righteousness, and to trust in Your plan for their lives.
In Jesus' name, we pray. Amen.
We encourage you to continue to seek God's will for your life and to trust in Him. Remember, His ways are higher than our ways, and His thoughts higher than our thoughts (Isaiah 55:8-9). He loves you and wants the best for you. Stay strong in your faith and keep your eyes fixed on Jesus. Consider Psalm 34:4-5, "I sought Yahweh, and he answered me, and delivered me from all my fears. They looked to him, and were radiant. Their faces shall never be covered with shame." WEB and 1 John 4:18, "There is no fear in love; but perfect love casts out fear, because fear has punishment. He who fears is not made perfect in love." WEB
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
