She's changed....

My best friend made a drastic change over the summer...and she's not talking to anyone...It's almost like she thinks she's better then everyone else...I mean, like I've heard this happening when you go from Jr.High to high school. But this is grade 12, our last year. And she is acting so immature about it...It's just...anoying...like geeze...she won't even look at me in the halls anymore let alone say hello when i try to start a conversation....

I'm not really sure how to approch her about it...

Just talk to her like you normally did. She's your best friend and knows you well. Talk to her like you don't even notice the weird things she's doing now.

everything will feel better after that.