BlackHeart Biohazards

I have a weird question question that might fall under self shipping and I kind of know nothing about the community. I’ve been doing this thing recently where I send myself love letters and respond to them. I’ve just designated a part of me as “the not entirely consenting receiver” and the other as “the irratatingly persistent stalker who won’t go away,” kind of as a way to indulge in romance and self love in a humorous way. Is there a word for shipping yourself with yourself or having a relationship with yourself? I’m trying to stay away from the whole syscourse thing, as I dont think? what I’m doing is related. I literally know nothing about any of that other than that various different groups have lots of dnis against each other that scare me. Also no worries if this is a question you aren’t interested in answering.