After Three Years of Being a Stand-In, You Say I Don't Look Like Her?

Have you seen me? Three years of light have ground me, reshaped me, and molded me into the outline of another person. You said Pearl needed pain, so I endured it. You said shadows shouldn't have names, so I stayed silent. Later I realized that the light produced by the shell never belonged to the shell. I've seen you. But you've never seen me. Turning around takes more courage than meeting.