

Ah right. I wonder if that’s the result of linguistic convergent evolution or however you’d term it, or if the common usage of “begs the question” arose from a misuse of the logical fallacy. I’ve not heard of the logical fallacy myself and only know it from the common colloquial usage, but English isn’t my first language so not sure how common the knowledge of the logical fallacy is among native speakers.
Nothing wrong with being obsessed with a fictional character. Lean into it and find ways of fulfilling the pain you say you are feeling, eg maybe spend more time writing stories about the character to explore things you want to see the character do or go through.
If you really want to “get over it”, then focus on developing other hobbies and interests. Whatever your second biggest interest is, spend more time on that.