Hey thewrit3r,
Welcome to the boards! Happy to hear you found some helpful information on the site
As you have first-hand experienced--sexuality is complicated! As a society we have certain sexuality categories that are common at any given time, for example: heterosexual, gay, lesbian, bisexual, queer, asexual etc. But not everyone fits comfortably into one of those categories, and even within those categories there is lots of nuance and complexity. And that is ok! Better than ok, even. Also, sexualities often change throughout our lifetime. Just like you explained how your understanding of your sexuality has evolved since you were a teenager. In case you haven't come upon this one yet--this is a great article that talks more about sexuality:
Sexuality: WTF Is It, Anyway?
To specifically respond about bisexuality--there is a common misconception that being bisexual entails being attracted to/interested in men and women in the exact same way. But it is completely normal to have your attraction to/interest in men differ from the way you are attracted to/interested in women. Does that make sense?
In terms of what exactly it is that you are feeling--non-sexual attraction or sexual attraction or romantic attraction--only you will be able to answer that. But it's okay if you can't answer that right now! You can keep exploring the feelings, and remain curious.
Since you asked about people with similar feelings, I will share that while I identify as heterosexual, I have wondered about my attraction to women. Despite feeling sexually attracted to women, I don't actually have the desire to have sex with or date women. I used to feel confused about this and feel anxiety about not being able to pin down my sexuality, but now I embrace that it is complicated and will continue to evolve