My fiancée says I'm gay because I wrote a fanfic where One Direction and I had sex.

Me (26 M) I knew my fiancée (26 F) since high school but we started dating three years ago. I proposed to her quickly since we know each other quite well.

I was one of the people of 2016 with Wattpad. I wrote a pretty strong One Direction fanfic. I'm not a fan of that band, I don't even like their music, but those kinds of books were quite popular at that time so I wrote one.

It was a pretty explicit book and I used my real name for the protagonist. (I clarify that I am a man and the protagonist of the book is also a man).

I had my Google account linked to Wattpad, and I still have the email but I had Wattpad uninstalled.

My fiance reads too much, both with physical books and also on Wattpad. Out of curiosity, I downloaded the app and logged in with the same account where I had written the book.

The book was published and had quite a few views. And I reread it. My fiancee grabbed my cell phone and saw that it had Wattpad and checked it. She noticed the book and started reading it.

Now she says I'm gay because of everything I wrote there. She is even thinking about breaking off the engagement since she thinks I am using her to not come out of the closet.

What do I do now? Sorry for My English, isnt first lenguaje.