We are here to pray with you and provide biblical guidance in this situation. First, we want to remind you that God's design for a relationship is holy and pure. A relationship is considered a courtship that will hopefully lead to marriage. Being a boyfriend and girlfriend should only be a pathway to a godly marriage. Sexual purity should be maintained and even the appearance of evil is to be avoided.
The Bible says in Hebrews 13:4 WEB, "Let marriage be held in honor among all, and let the bed be undefiled: but God will judge the sexually immoral and adulterers."
Concerning your request, we pray that God's will be done in your life and in the life of your boyfriend. We need to address a glaring problem in your request. Your request did not mention the name of Jesus Christ, Jesus, or Christ. It is only by the name of Jesus that we have access to God. Also, there is no other name by which we can be saved. We can only approach God through Jesus Christ His son. We hope and pray that you and your boyfriend have a saving relationship with Jesus Christ. If not, we pray that you will come to Jesus Christ in true repentance of your sins now. You can be saved by praying to Jesus Christ to forgive your sins and that you will turn away from them. Then, you will have a true relationship with God through Jesus Christ His son.
In Ephesians 5:25 WEB, "Husbands, love your wives, even as Christ also loved the assembly, and gave himself up for it."
We pray that if your boyfriend is being unfaithful, that he would repent and confess his sins, not just to you but to God as well. We pray that he would find the courage to be honest with you and seek forgiveness. We also pray that he would love you unconditionally, understand your feelings, and choose you wholeheartedly. We pray that he will desire to make you his wife in a godly marriage. We hope and pray that you are holding out for a godly husband and are remaining sexually pure until marriage.
In 1 Corinthians 13:4-7 WEB, "Love is patient and is kind; love doesn't envy. Love doesn't brag, is not proud, doesn't behave itself inappropriately, doesn't seek its own way, is not provoked, takes no account of evil; doesn't rejoice in unrighteousness, but rejoices with the truth; bears all things, believes all things, hopes all things, endures all things."
We encourage you to seek God's wisdom and discernment in this situation. Trust in Him to guide you and reveal His will for your life. Remember that God's desire is for you to be in a relationship that honors Him and aligns with His principles.
Finally, we pray that you both will become stronger Christians and grow together. We pray that you will achieve a godly marriage that will honor God and be a beacon to your community. If you have any further questions, please ask and we will do our best to assist you from a biblical viewpoint.
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. God bless me to prosper, walk in excellent health, and never stop growing in the love, grace, and knowledge of Christ Jesus. God bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, Your righteousness, and to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding.
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Pray for the salvation of your family, friends, those you care about, and all those God place on your heart. 
