Alright, 40s here, I'll try. I assume OP is some kind of social media figure with a following. "Ship" means having a parasocial or imaginary relationship with a public figure, like a kpop star. I think fandoms often "ship" imaginary charactors together, like 2 charactors who are not in love in the original material of an anime.

So she's saying break up with your girlfriend because I imagine us together. Take down your photos because I'm jealous your other fans will look.

Then she's talking about a parasocial relationship she has with an ai chatbot she has trained upon OP's likeness and data. She's saying her chatbot version of OP told her to go ahead and contact OP with these psycho demands.

How did I do?