Was Demi sexuality something you have always felt or was it something developed?

I think currently demisexual is the best way to describe my orientation, however I feel like this has been something that has developed over the last 2 years as I clearly remember feeling quite the opposite until around 2023.

I'm 16 years old but from what I remember when I was around 13-14 I was 1. A complete asshole and 2. DEFINITELY not demisexual. Could this be just a puberty thing or has any of you guys had a similar experience? I'd love to chat about this as I think it's an interesting topic of discussion :)