Aviva and Zach became best friends after science camp and remained friends up until college.
They made friendship bracelets and everything.
They still had their academic rivalry going in high school but it was more light hearted.
They would do almost everything together. (Homework, eat lunch, work on inventions)
They went to the same high school and both graduated early.
Zach's parents put a lot of pressure on him to be the best which caused strain between his and Aviva's relationship.
She felt like he started to look down on her.
I don't know if they would go to the same college but I can see them as room mates.
Zach's parents paid the rent so Aviva did most of the cooking, cleaning, laundry, etc. (Mostly because Zach didn't know how lol)
Aviva met Koki in one of her college classes and they became close pretty quickly.
Zach was VERY jealous of Koki. He felt hurt because he thought Aviva was trying to replace him with her.
Aviva tries not to mention any one from her school because Zach would get very upset and it would always lead to an argument.
The thing that sent him over the edge though was when she became friends with Martin and later Chris.
Zach felt like she was betraying him.
They started arguing daily.
Zach would be passive-aggressive with her. Like if she were to come home an hour later than she usually did, Zach would be like "I guess since you have new friends you don't have time for me anymore".
Aviva would be petty and ignore him for days at a time.
Like she'd leave a note on the fridge saying something like "i'm not gonna be home tonight. If you get hungry you better order something or figure it out." while she would be staying over at Koki's dorm.
After graduation Aviva basically texted him saying that their friendship wasn't going to work anymore and cut all contact with him. She was too scared to confront him directly.
She still regrets it low key but she's also glad she has new, non toxic friends.
Zach is heartbroken and furious, feeling like the Kratt brothers took away his best friend.
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