In the Wake of Tragedy

What would you do in a situation where you had to choose who to save?
Riley Hale has always been the girl who would do anything to make sure they were okay. She was drop dead gorgeous, yet she's never been seen with a boy. She works three jobs for the hopes of accomplishing her dreams. It's fall season and she couldn't be any more content.
Blake Blair has been seen with almost every girl on campus. He's always looking for a challenge. He's never worked a day in his life, used to getting everything he wants.
When the two cross paths, Riley's made up her mind that he's some rich, arrogant snob. Blake thinks she's a nerd with no life.
But what happens when the university has an active shooter on campus?
What happens when it's up to each other to make it out alive?
Will they succeed? Or will they have a choice to make under certain circumstances?
Could this tragic turn of events even bring them together?