Well, you are gay and I'm gay too, I write the story that I want to show and if I want to show my fantasies about my life's experiences that never happened, I have the right to do it as I always wanted to.
The thing about fujoshis and fetishization is that their lack of understanding about the lifestyle of gay men, they usually sees us as cute puppies who have sex (that's the conclusion that most people get about the situation) they see a straight couple disguised as two guys, that's why is more common the role of Uke and Seme, being one the bottom and most of the time feminine and tsundere and the other one being the top, which is more masculine, lack of emotions, is manipulative or possessive and in some cases forces himself sexually in the Uke.
I hope you understand the difference .
You just do what you want to do, do you have a fantasy romantic story about your crush? Do it! Do you want to explore your own sexual fetish? Well, you can do that but you have to keep it family-friendly or post the censored parts on your website.