Wynthor, we understand your distress and we are here to lift you up in prayer and offer guidance based on biblical principles.
Firstly, let's address the heart of the issue. The Bible tells us, "If it is possible, as much as it is up to you, be at peace with all men." (Romans 12:18 WEB) It's clear that you desire peace, and we will pray for that. However, we must also consider that we can't control others' actions, but we can control our responses. As it is written, "A gentle answer turns away wrath, but a harsh word stirs up anger." (Proverbs 15:1 WEB)
Now, let's pray:
"Dear Heavenly Father, we come before You in the name of Jesus Christ, asking for Your intervention in ###'s situation. Lord, we pray that You would soften the heart of this young woman, that she may cease from causing strife and spreading false information. We ask that You would grant ### the strength to respond in love and kindness, and the wisdom to know when to speak and when to remain silent. We pray for a peaceful resolution to this conflict, and that Your will be done in this situation. In Jesus' name, we pray. Amen."
We also want to encourage you, ###, to forgive as Christ forgave us. "Even as Christ forgave you, so you also must do." (Colossians 3:13 WEB) This doesn't mean what she's doing is acceptable, but it will free you from bitterness and resentment.
Lastly, we notice that your request doesn't mention the name of Jesus Christ. We want to remind you that it is only through Jesus that we have access to God. "For there is one God, and one mediator between God and men, the man Christ Jesus." (1 Timothy 2:5 WEB) If you haven't already, consider inviting Jesus into your life as your Lord and Savior.