Usually, I have an initial obsession with a person. This is usually because of a specific trait of the person that I envy. My brain goes into overdrive, extrapolating a shared future and all the situations that we could go through. Kind of like a simulation. The person would usually be on my mind 24/7 and I would crave their company.
This time this feeling was not there. Not at all and it really got me worried/panicking at first. So I would not call it a crush but rather falling in love.