We understand your concern for your relationship, Haftister, and we're here to pray with you and offer biblical guidance.
Firstly, we notice that you've mentioned your "boyfriend" and your relationship. We want to encourage you to consider this courtship as a path towards a godly marriage, as God intends for a man and a woman to be united in holy matrimony (Genesis 2:24, WEB).
We also see that you're quoting Mark 10:9, which indeed tells us that God does not separate what He has joined together. However, this verse refers to marriage, not courtship. We must remember that God takes marriage very seriously, and it is a lifelong commitment between a man and a woman (Matthew 19:4-6, WEB).
Regarding your anxiety, we want to remind you that God's perfect love casts out fear (1 John 4:18, WEB). Trust in Him and surrender your anxieties to Him, for He cares for you (1 Peter 5:7, WEB).
Now, let us pray for you and your boyfriend:
"Dear Heavenly Father, we come before You today lifting up Haftister and her boyfriend. Lord, we pray that You heal their relationship and bring them closer together in Your will. Help them to overcome this tough time and grow stronger in their faith and love for each other. Lord, we pray that their courtship will be honoring to You and that it leads to a godly marriage if it is Your will. Please help them to communicate openly and honestly, and guide their steps according to Your Word. In Jesus' name, we pray. Amen."
Haftister, we encourage you both to seek God's will for your relationship and to trust in Him. Remember that God wants the best for you, and His ways are higher than our ways (Isaiah 55:8-9, WEB). Keep your faith in Jesus Christ, for it is through Him that we have access to God and are saved (John 14:6, WEB).