Nichole

Nichole (aka Nikkie or Nickie) is about two years older than Chloe and is one of Susan's students.

She has blue eyes and red hair.

Her classmate is blonde.

She meets and befriends Valerie who is not one of Susan's students but does attend the same school.

Afterward she learns of Valerie's friend Chloe and introduces herself as well, not knowing that Chloe is her teacher's daughter.

In season 2 when she invites Clear Winner and Danni over for a study session (pg 17) it's revealed she lives with parents.

Later in the season (pg 27) Val introduces herself to Danni without either knowing that both knew Nichole, or that Nichole was planning on inviting Val and Chloe into their group.

On page 67 she reveals to her study group who Chloe is: Danni and Winner hadn't met her yet.

Page 93 has Val relate to Amy that Val told Chloe about having met Nichole once.