Love for fictional characters in fan fiction
I wrote an Artifice article called "Can You Really Fall in Love with a Fictional Character?" (That's not shameless self-promotion, that's context for this topic). I got a comment about what the topic looks like in the context of fan fiction.
Based on comments I’ve seen, many people express their love for a fictional character by writing “self-insert” fan fiction in which they have a relationship with that character.
Fan fiction could also be used to express agape, non-personal interest in the well-being of the character. A fan can rewrite the ending of a story so it is happier for a particular character. This is often called “fix-it” fiction.
I'm not sure if there is enough subject matter here for a full article, but then again, I am not enough of a subject matter expert on fan fiction to write it myself. If you know more about fan fiction, perhaps you could flesh it out more?