I was able to complete her route successfully! ELENI SPOILERS!!!
I'm somewhat sad I don't get to be with her in the end. Even so it was a wonderful and unique route! I look forward to completing everyone elses route :>
I don't think I was able to find her outside classes or lunch. You just need to make sure that your charisma is above 10 and if you talk with her enough you should get a cut scene during the beginning of one of the days.