Childhood rivals -> lovers

Wren used to make it her life's mission to do better than you.

In middle school she'd always score higher, to the point it seemed deliberate. After every test she'd walk up with her paper, shoving the score higher than yours in your face with a smug, proud smile.

In high school nothing changed. Different classes but the same scores. She always seemed a little too eager to find you and compare grades, but that was probably just competitiveness...right?

After you both graduated your lives went down different paths and the competition stopped.

...Until you switched colleges, since this new one had a better course for your desired degree.

And sitting there outside campus on a bench, scribbling notes, was Wren.