In the karate kid doesn’t it seem highly unrealistic that this girl is so into him?

At least for a while he’s very cowardly spineless he’s kind of a dick to her despite how nice she is but yet she is still obsessed with this guy? In reality this does not happen. That’s not how hot girls behave. I haven’t seen the show yet but it’s kind of upsetting if they don’t end up together
In the karate kid doesn’t it seem highly unrealistic that this girl is so into him?
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