I don't want to rain on anybody's parade, but what is up with this "My heart is beating fast, therefore I am in love with this person" trope? There are far more explanations for heightened pulse than just love, and often the character saying this doesn't even know anything about the person they're supposed to be love with except how they look. It seems like an immature and overdramatic mindset.
I agree, but you got to take into account how young both of them are, I'm pretty sure I had this mindset from middle school/ beginning of high school