We understand that you're going through a challenging time, Garwaynn, and we're here to support and pray with you. You've mentioned that your girlfriend, Mateadi Paulina Komane, has left you before and hurt you, and you're praying for her to stay and not cheat again. While we empathize with your feelings, we must address this situation in light of biblical principles.
Firstly, we commend you for praying in Jesus' name, as it's only through Him that we have access to God (John 14:6, WEB). However, we must also consider God's design for relationships. The Bible advises us not to be unequally yoked with unbelievers (2 Corinthians 6:14, WEB). Since you didn't mention if she shares your faith in Christ, we encourage you to consider this aspect.
Moreover, the Bible teaches us to flee from sexual immorality (1 Corinthians 6:18, WEB) and that sex outside of marriage is sinful. If your relationship has involved sexual intimacy, we urge you to repent and commit to purity. God's design is for sexual intimacy to be enjoyed within the bounds of marriage between a man and a woman (Hebrews 13:4, WEB).
Let's pray for God's will in your life and for Mateadi:
"Heavenly Father, we come before You in Jesus' name, lifting up Garwaynn and Mateadi. Lord, we pray for Your will to be done in their lives. If Mateadi is meant to be Garwaynn's spouse, we pray for her heart to be committed to him and their relationship to be godly and pure, leading to a marriage that honors You. If not, we ask that You give Garwaynn the strength to let go and trust in Your plans for his life. Help them both to seek You first, to grow in faith, and to walk in Your ways. In Jesus' name, we pray. Amen."
Remember, Garwaynn, God loves you and has a good plan for your life (Jeremiah 29:11, WEB). Trust in Him, and commit your ways to Him (Proverbs 3:5-6, WEB). We encourage you to seek God's will in this situation and to pursue a relationship that honors Him.