I have a similar experience.
I think I had a crush on this boy in like second grade. He was super smart, athletic, and pretty. I was too nervous around him to talk to him. Looking back at it, I'm not sure if it was a crush or not. There is a possibility I just wanted to be as smart as him (I also was constantly comparing our "relationship" to that of Marinette and Adrien from Miraculous Ladybug, as it was around the time of its popularity, so idk). But it was the only crush I've had in my life, so I'm still confident in my identity (after all, the description is little to no romantic attraction).
Just like you, I love the idea of soulmates. My favourite fanfiction genre is meeting your soulmate. I've thought about it, and I think it might be rooted in my aromanticism! I love the idea of being close with someone, but I don't understand falling in love; the soulmate genre provides just that. There is no flirting, foreplay, or other uncomfortable stuff, its just two people meeting and instantly being "extra friends" (or however you want to name it).