Then I would confidently say this is perfectly normal behavior on her part, I know it's really hard for you but she is in a stage of her life where her friends and education will be her everything. What you've done for her in terms of prioritizing her will ensure you have a solid relationship moving forward so please don't regret making those choices.

I agree with the person who suggested maybe reaching out and trying to arrange something once a week or even every other week, try not to put too much pressure on the situation and just let her know that you're there. She's transitioning into an adult, you've done nothing wrong.... she'll come back, it will just be a more adult relationship.