My crush told me I gave up too easily :|

She told me the conversation went like:
Me: I just want to say that I love you.
She: No, I don't feel the same way about you. Sorry. But you're my best friend.
Me: Oh okay. I'm cool 😎

She told me I just gave up. I didn't show enough interest. I didn't make her feel special. "That's how girls develop feelings for a guy, dumbo" :|