What will happen to Ian when he comes back?
Good ending: He wakes up, realizes his life is in the gutter and that he's spent years being emotionally abused and gaslit, divorces her, gets help, and then after an appropriate amount of time settles down with a non crazy woman and starts a family. (Chance of happening: 1/10)
Neutral ending: They remain together and Ian becomes more and more of a shell of himself. Eventually any personality he he had is completely overtaken by her. They fall so far out of relevance that even though they continue to post "content" people largely have forgotten about them. Views are in the triple digits at best. (Chance of happening: 7/10)
Bad ending: He kills himself. Anisa milks his death for money (And somehow manages to turn it into a photo shoot for her only fans.) (Chance of happening: 5/10)
Evil ending: They have kids. ( (Chance of happening: 3/10, I hope)
Edit: wow, I can't read and I answered a completely different question from the one you asked.
When he comes back she is going to suffocate him with neediness. The podcast episode that occurs when he's back, I suspect is going to be full of lots and lots of Anisa cringe and insecurity. She might also try and punish him by publicly humiliating him on the podcast about something. BPDs are predictable once you regcognize what they are.