Maybe she doesn't get it yet. It took you until now to figure it out.

[ Glimmer pauses. She also knows the feeling of anguish and guilt that comes with trying, failing, and doing more harm than good. Even if Catra probably doesn't have that exact emotional arc... or maybe she does? ]

Or she thinks she's not good enough for you? Or that maybe you wouldn't take her back after all the Horde stuff?