LOVED ME NEVER

Kathy Williams and Dave Miller have been best friends since diaper days.
Kathy is madly in love with Dave ever since.
She does everything for him, from waking him up for school till seeing that he has brushed his teeth before bed. She is like his second mother.
Kathy is sassy and carefree. She could easily come off as a tomboy due to her adventurous nature and her lack of enthusiasm to get dolled up. But that doesn't mean she never gets dressed up.
Entire school knows how close they are and want them to start dating.
Kathy being Kathy always shrugs it off with sassy comebacks or loud shut the eff up or visibly disgusting snorts.
But the question is why hasn't Dave asked her out yet when it's already the last year of school left?