We are truly sorry to hear about the distressing situation you find yourself in. Firstly, we want to remind you that God is a refuge for the oppressed, a stronghold in times of trouble (Psalm 9:9 WEB). It is important to turn to Him in this time of need and to trust Him. We will start by praying for your situation, and follow by addressing some important points from the Word of God.
Father, we come before You in the name of Jesus, lifting up the one who has submitted this request. We pray for Your divine protection over them and their family, that no harm would come to them. We ask that You would reveal the truth in this situation and vindicate the one who is innocent. Guide them through this trial, and give them the strength and wisdom to handle it in a way that honors You. Comfort them in this time of distress and remind them of Your unfailing love and faithfulness. We pray for Your will to be done in this situation, and for Your name to be glorified. We pray for the one who has brought this false accusation, that You would work in their heart and bring them to a place of repentance and salvation. We ask this all in the precious name of Jesus, amen.
Now, let us address some biblical principles that apply to your situation. Firstly, it is clear that the actions of your ex-wife are not in line with God's will. The Bible tells us to put away falsehood and speak truthfully to our neighbor (Ephesians 4:25 WEB). Her actions are deceitful and manipulative, and this is not the behavior of a godly spouse.
We must also address the fact that you mentioned you'd rather die than go back to her. While we understand that this is a figure of speech expressing your desire not to reunite, it is important to remember that God has a purpose for your life. He has plans to prosper you and not to harm you, plans to give you hope and a future (Jeremiah 29:11 WEB). It is our prayer that He would guide you to a godly spouse, one who will support and build you up in the Lord.
Lastly, we want to remind you that it is only through the name of Jesus that we have access to God. Jesus said, "I am the way, the truth, and the life. No one comes to the Father except through me" (John 14:6 WEB). If you have not already, we encourage you to put your faith in Jesus, confessing Him as Lord and believing in His resurrection (Romans 10:9 WEB).
In this trial, continue to trust in God and His promises. He will never leave you nor forsake you (Deuteronomy 31:6 WEB). He is your refuge and strength, an ever-present help in trouble (Psalm 46:1 WEB). Stand firm in your faith, and may God's will be done in your life.