Girl's Behavior

WHAT DOES IT MEAN IF A GIRL ACTS DIFFERENTLY AROUND YOU? DOES SHE THINK I'M BORING?

She's usually very loud, rowdy, and brash. You can always know that she's coming down the hallway because she's always yelling, "Whatcha' lookin' at, boy/girl?" or "Get the f out of my way!" She shouts at, cusses at, and pushes and shoves the other boys and her female friends. Around me, though, she's very chill and more mature. For example, I would just be walking down the hallway, trying to get to class, when I see her punching the other boys on their back, shouting at her friends, and laughing like crazy. But as SOON as I walk by, she immediately stops, runs up to me, taps my shoulder gently, and greets, "Hello, [my name]" in the kindest, most polite voice ever. What the heck? And she actually says my name. With her friends and other guys, she never ever says their names, just calls them "boy" or "girl." Sometimes, she even defends me from bullies and offers to play or work on a project with me. Most of the students, even the boys, are scared of her since she can be violent and is pretty tall compared to the other girls. She's 5'9--taller but younger than me! I think she's secretly smart but is just too fun-loving and lazy. Always disrespecting the teachers. She does tease me from time to time but isn't rude or mean. She's even called me "cute" before, too, and even pinched my cheeks. It was so funny, yet awkward because I was just talking to her, and out of nowhere, she just started poking my face and wiggled my cheeks around. She was focused and was biting her lips like a kid and everything! Also, we're 16. But yeah, she's childish and in-your-face around her friends and most boys, but around me, she's more chill, speaks softly, and is feminine. Does this mean she thinks I'm boring and lame?
WHAT DOES IT MEAN IF A GIRL ACTS DIFFERENTLY AROUND YOU? DOES SHE THINK I'M BORING?
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