why?

they meet Part 1

it was another day at school for Will Byers, he searched for his closets friends Mike, Dustin, Lucas, Max, and Eleven when he suddenly ran into someone who dropped their books sorry Will said as he began to pick her books up "its fine, my name is Jaeden nice to meet you" the small girl said "oh well my name is Will nice to meet you too" Will said as he gave her books back to her, Will and Jaeden kept talking for awhile when it was starting to get close to the first bell ringing "what class do you have first?" Jaeden asked "english with Mrs. Wolf" Will answered "really!" Jaeden questioned, Will nodded "me too! I can't believe I never noticed you... and to think that I knew everyone in that class" she giggled "well I guess you didn't kno-' but before Will could finish his sentence Mike came running over "WILL! Where have you been? I was looking for you forev- who is this?" Mike looked over at Jaeden who was standing there awkwardly " that's Jaeden, I just met her today, she is really nice" Will smiled widely at Mike who looked unimpressed. Mike suddenly whispered to Will "I don't like her." Mike glared at her "how you barely even know her, how can you hate her?" Will asked bothered that Mike could possibly hate her when she is so nice " I don't know Will, she sees suspicious" "oh whatever Mike trust me once you get to know her you will find her really nice"Will said confident he will begin to like Jaeden "whatever" Mike then walked away "what was that all about" Jaeden asked confused nothing will said walking to class with Jaeden changing the topic