I am writing this to seek advice regarding a close friend I have known for a long time. She has always been very intelligent, with a logical mind and excellent writing skills. However, over the past six months, her personality and behavior have changed to the point where I can no longer recognize her.

About six months ago, she claimed to have had a near-death experience, though I cannot confirm if this actually happened. Since then, she insists she is in direct communication with God and has gained healing and prophetic powers. Although I am a person of faith, I find it difficult to see this as a spiritual awakening; to me, it appears to be a mental health crisis.

One of the most confusing aspects is her intellectual ability. Her writing remains sophisticated and her vocabulary is still rich. She recently told me she can now logically prove the existence of God. To a stranger reading her blog, she might seem like a deeply devoted and articulate mystic. However, knowing her well, I can see her intelligence being used to justify her delusions. She uses logic not to find truth, but to build a defense for her distorted reality.

Earlier this year, she was paranoid, believing that an AI company was spying on her. She has since told me that those thoughts were not true, but that belief has simply been replaced by an intense, unrelenting euphoria. She has been in this high-energy state for months. She used to avoid social media, but now she posts public updates constantly and reaches out to people she has not spoken to in years.

I am particularly concerned about her behavior toward me. She often tells me not to feel pressured to reply to her messages, yet she will suddenly call me out of the blue without any prior notice. Even when I do not respond to create boundaries, she continues this pattern.

She has also started weaving me into her "prophecies." She insists I will come into a large amount of money soon and tells me I must do charity work to prepare. She claims my mother is an angel and warns me to stay away from the occult because she believes she is fighting a spiritual battle. She has even started using my initials in her public posts, creating a narrative of a connection that only she perceives.

She lives with her boyfriend, but he seems to be going along with her claims of spiritual experiences rather than seeing them as medical symptoms. It feels like everyone is watching her state of high energy without realizing how detached from reality she has become.

I feel a profound sense of grief. I have spent months worrying about her, but her current behavior and the loss of her original personality are alarms I can no longer ignore.

I am looking for advice on:

1. How to deal with a delusional person who uses their intelligence to twist every attempt at a logical conversation.

2. Whether this state of persistent euphoria is common in the early stages of schizophrenia or similar disorders.

3. I feel as though I am mourning someone who is still alive. Any insight from those who have dealt with similar situations would be greatly appreciated.

+ I should also mention her growing obsession with numbers. She finds significance in almost every digit she encounters—whether it is the time on a clock, a car license plate, or random numbers on the street. She is convinced that these are not mere coincidences but are "divine synchronicities" or coded messages sent specifically to her. She spends a lot of energy connecting these numbers to her personal life and her spiritual missions, seeing patterns where there are none.