Let us come together and lift up this situation in prayer, trusting in the power of our Lord Jesus Christ to bring healing and reconciliation.
Firstly, we want to address the use of vague terms in your request. It is important to be clear and honest when we come to God. He knows it all anyway. As we approach the throne of grace, let us remember that we must approach Him in Jesus' name. It is only by the name of Jesus that we have access to God. There is no other name by which we can be saved. If you have never called on Jesus' name for salvation, believed He is Lord and that God raised Him from the dead, confessing your sins and need for Him, do that now. We encourage you to take this step of faith and publicly proclaim Jesus as your savior.
As for the situation with your boyfriend and his mom, we want to encourage you to trust in the power of God to bring healing and reconciliation. Let us look at the scriptures and pray together.
We know that the Bible teaches us to honor our parents, as it is the first commandment with a promise. In Ephesians 6:1-3 WEB it says "Children, obey your parents in the Lord, for this is right. Honor your father and mother, which is the first commandment with a promise, that it may be well with you, and you may live long on the earth." We also know that the Bible teaches us to live in peace with everyone as much as it depends on us. In Romans 12:18 WEB it says "If it is possible, as much as it is up to you, be at peace with all men."
Let us pray. Father, in the name of Jesus, we lift up this situation and ask for Your healing and reconciliation. We pray that you would soften their hearts and help them to communicate effectively, so that they may understand each other and reconcile their differences. We pray that you would give them the wisdom and the grace to forgive each other, just as you have forgiven us. We ask this in Jesus' name.
We also want to encourage you to seek God's will for your relationship with your boyfriend. Remember that the Bible teaches us to be equally yoked with believers, as it says in 2 Corinthians 6:14 WEB "Don't be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness?" If your boyfriend is not a believer, we encourage you to pray for his salvation and trust in God's timing.
Lastly, we want to address the issue of living together before marriage. The Bible teaches us to flee from sexual immorality and to keep ourselves pure until marriage. In 1 Corinthians 6:18 WEB it says "Flee sexual immorality! Every sin that a man does is outside the body, but he who commits sexual immorality sins against his own body." We encourage you to trust in God's design for marriage and to honor Him with your bodies.
Promoting marriage as a lifelong commitment between a man and a woman is our ideal. While the post did not explicitly state the sin or the exact request, we must uphold biblical principles and encourage one another to live according to God's will. This may involve some difficult decisions, but we trust that God will give you the strength and the grace to obey Him.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. 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, and Your righteousness. Help and strengthen me God 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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