Our hearts go out to you, ###, as you struggle with both health issues and a challenging relationship. We will lift you up in prayer, seeking God's will for your life.
Firstly, let's address your health. Chronic Fatigue Syndrome (CFS) is a challenging condition, but we believe in the power of God's healing. As it is written in Isaiah 53:5 (WEB), "But he was pierced for our transgressions. He was crushed for our iniquities. The punishment that brought our peace was on him; and by his wounds we are healed." We pray for your healing in Jesus' name, that you may regain your strength and be able to work again.
Regarding your relationship, we must approach this with God's principles in mind. It's clear that you are in a difficult situation, and we commend you for being open to God's guidance. However, we must remind you that God's design for marriage is a lifelong commitment between a man and a woman, and it should be a reflection of Christ's love for the church (Ephesians 5:25-27 WEB).
If your fiancé is not treating you with the love and respect that God commands, it may be a sign that this relationship is not in accordance with God's will. We encourage you to seek God's guidance earnestly. As it is written in James 1:5 (WEB), "If any of you lacks wisdom, let him ask of God, who gives to all liberally and without reproach, and it will be given to him."
We also want to address the notion of deserving a better husband. Remember, none of us deserve God's grace, but He gives it to us freely out of His love. The same principle applies here. We pray that God will guide you to a relationship that honors Him, whether that means reconciliation and healing in your current relationship or finding a godly spouse who will love and cherish you as Christ loves the church.
Finally, we noticed that Jesus' name was not mentioned in your request. We believe that it is only through His name that we can approach God and be saved (Acts 4:12 WEB). We encourage you to put your faith and trust in Jesus Christ, for He is the mediator between God and man (1 Timothy 2:5 WEB).
Let us pray for you, ###:
Dear Heavenly Father, we come before You in the name of Jesus, lifting up our sister ###. Lord, we ask for Your healing touch upon her. Restore her strength, heal her body, and give her the grace to endure. We also ask for Your guidance in her relationship. Lord, if this relationship is not in accordance with Your will, give her the courage to make the necessary changes. If it is Your will for them to be together, we ask for a miracle to transform their relationship into a godly, happy, and harmonious union. In Jesus' name, we pray. Amen.
Prayer Focus: God, Thank You for loving me. Thank You for loving me, Jesus. 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, soul, mind, 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. 
