Why is she not in the yearbook at all?

[Megan]

Let's say you met this girl on facebook. You are both in college. She claims to have gone to the same high school you went to and that she was a cheerleader there. She even has pictures on her facebook page in her uniform (they have several uniforms they use for your high school but it is one of them exactly). She even has a picture in her uniform in your high school gym!

Yet when you pull out your yearbook, she isn't listed. Not in the cheer team pictures, not in the main pictures, not in the class photo. Not anywhere. It doesn't even say a "not pictured" or list her name at the bottom.

How do you explain this?

Btw I know for a fact it's not a fake account, some of my friends personally know her!!

Also she's not from a different class. She told me what class and I've looked. I've looked in other classes too just to be sure.
It's not fake!!! My best friend knows her brother and I've met him!! And I know I have, sorry. This is just really bothering me