Dreaming of God only reflects the inner desire for the God in charge of life and death.
The hell in the dream means returning to the origin (we were born in a cave) and is also a portrayal of death.
The old girlfriend is a combination of death and girlfriend;
I don't know what state your girlfriend is in now, so I dare not guess.
Why did you dream about this? I have a hunch that your psychology is very dangerous now. What triggers your subconscious thinking about death? I think it should be taken seriously. If possible, please leave me a message to discuss it.