I hate to be the one to break this to you, dude, but as a general rule, women don’t pretend to virulently hate men they’re secretly in love with as some sort of elaborate courtship ritual. That’s a trope we made up to justify why the male protagonist always gets the girl in the end even when it’s starkly at odds with prior characterisation. In real life, if she acts like she thinks you’re a creep, it’s because she thinks you’re a creep!
You mentioned in a post that fiction ≠ reality, but to kids it's not, fiction shapes how they see the world. Fiction is supposed to show them what's right and what's wrong. Adults who support adult/minor relationships make it had for children to distinguish that line if they haven't dealt with discourse (in the actual sense of the word) on serious subjects before. I can't make you stop shipping adult/minor ships, but I hope you consider what you're posting and the consequences that they have.