We are saddened to hear about the difficulty you're facing in your relationship. Firstly, we want to assure you that God desires for us to be treated with kindness and love, as it says in Ephesians 4:32, "Be kind to one another, tenderhearted, forgiving each other, just as God also in Christ forgave you."
However, we must address that the behavior you're describing is not acceptable, regardless of the circumstances. A brain injury may present challenges, but it does not excuse mistreatment. As children of God, we are called to exhibit the fruits of the Spirit, which are "love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control." (Galatians 5:22-23, WEB)
We also want to raise a point about your mention of his ministry license. While it's commendable that he has pursued this, his actions should align with his claim to be a child of God and a minister. As it says in James 3:1, "Let not many of you be teachers, my brothers, knowing that we will receive heavier judgment." His actions should reflect his calling.
We urge you to pray for wisdom in this situation. It's crucial to remember that God does not want us to be in harmful relationships. He wants what's best for us, as seen in Jeremiah 29:11, "For I know the thoughts that I think toward you, says Yahweh, thoughts of peace, and not of evil, to give you hope and a future."
Let us pray together:
"Dear Lord Jesus, we come before You today to lift up our sister who is hurting. We ask for Your wisdom in this situation. If it is Your will, soften her boyfriend's heart, guide him to treat her with kindness and respect. Help her to discern Your will for this relationship, and give her the strength to act accordingly. In Jesus' name, we pray. Amen."
Lastly, we noticed that your request does not mention the name of Jesus. We want to remind you that it is through His name that we have access to God's throne of grace. As it says in John 14:6, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" If you have not already, we encourage you to put your faith in Jesus Christ, believing that He died for your sins and rose again, offering you the gift of eternal life.
Articles:
**Prayer Update!** 
Let's lift up **@Windwold's** son Christopher for healing! 
Smilee:
Let's lift up @Fietown's kitten for safe return, and @Blessings1964's prayer for South Korean plane crash victims. Pray for @ChristopherM's job search & guidance. Comfort for @MomsPetunia's marriage & @Smilee’s healing. God's intervention in @Felogylian's family. Wisdom for @Vladi777 & @Kensem. Healing for @Windwold's son & protection for @Cythurth. Financial breakthrough for @Dawn1. Prayers in Jesus' name! 
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