Until she can...
She is tired of seeing that light already. She is frightened of feeling too much, of abusing that unknown feeling. Crazy heartbeat, sweaty hands, sudden butterflies in her stomach, you are the reason behind those reactions.
She is still there sitting on the side, though the light is so bright she never went anywhere because she still believes that somewhere in between you will be there with her. You can, but will you really fetch her? Or will you just abandon her? Is she still waiting for someone who is responsible enough to comeback or is she just creating a reality that will never happen anytime?
"She can still bear it", that's the thing that she wants to feel. But how long will she wait for it? How painful it will cost her to wait for you while being destructed by too much light?
Please, be with her, she will still wait, and she'll hold on until she can, until the time that fate allows her, until the time she can break what is forbidden, until her heart can handle that unfamiliar yet incredible feeling.