Im starting to fall in love with my best friend

Two girls to be aware of: (names changed for privacy) marie: best friend labeled as a sister. Kairi: best friend im falling for.

If you want to skip to the point Read the paragraph below then read the last four at the bottom.

Now before i start my story i'd like to inform you all as the readers that i go by a False love system i have created called "LOR". Its stand for three things that can be perceived as love but are not actually love.
Lust: physically sexual attraction to another's appearance.
Obsession: unhealthy intense focus on one person
Rebound: immediately go into a relationship after heartbreak of previous relationship. Thus falling immediately in love with your newfound partner.

Kairi when i first met her was a pretty girl and she still is to this day, perhaps even more! Back then i wasnt attracted to her and i would speak to her not often until the next year. That year, in high school, she and i would walk around the entire school just talking for the entire hour of lunch. We then had became best friend.

I had dated Marie that year for a week before she dumped me for a jerk (makes no sense!) and our relationship had broken to pieces. Strangely enough, the universe had brought Marie back as my best friend. Which would be a rare case for most. Since the relationship should've been ruined permanently. Back to Kairi!

This year sadly, Marie is moving to another state. Kairi and i will miss her very much. The two girls were supposed to go to prom to enjoy some bonding time. So instead i fill in for Marie. Which is awkward, but my feelings for Kairi remained before the invite to prom.

Now for the mushy part. It has been three years where she and i have been friend and then best friends. Today i have begun to gain feelings for her. It is scary to me because this girl that i love with all my heart is my only remaining best friend nearby. I had many times where she and i walk home together laughing at jokes, and she would always say when she is really tired that i will have to carry her home, and we would talk about our crushes, but this time, my crush is her. Clearly enough she trusts me enough to invite me to her birthday, prom, say that i might have to carry her home, and there is one thing that echoes through my mind.

I said i might move back to hawaii to create my own company when i get older. Her first response thinking i was moving as soon as i hit college. "Don't go to Hawaii, I need you here." BAM my mind was blown by such words that might have expressed attachment or have been an over exaggeration of my brain stimulated by love

A year ago she stated she had no interest in me, could that have changed? And could i risk taking that first step and forever changing the way she sees me and I see her? The questions that buzz through my mind and keep me holding my head in insanity as i fight within myself to stop having feeling with her. For months i have tried but to avail have i gotten any progress of losing lovey dovey feelings for her.

I have no physical want for her, nor obsession as i am struggling to not perceive her as the one for me. Is this Normal? And if So or not so, what can i do? Should i come to terms with myself just accept that im hopelessly in love literally or just keep arguing with myself? Again is this normal?