He wants power Ever since you walked across the windowsill and saw the Commander of the Fourth Wing: Xaden Riorson, you've been following him in some kind of obsession, even though he didn't want you... he basically wanted to kill you because of the fragility of your bone and name: Sorrengail- because he blamed your mother Lilith Sorrengail for beheading his compatriots, including Fen Riorson, his father and leader of the rebellion

but a few months passed and Xaden, as the saying goes: "she fell first, he fell harder" - he reciprocated your feelings. At first it was wonderful... until the Xaden start using your weaker strength, both physical and mental

you were just trying to fall asleep in your bed when Xaden came back from class