I'm Supergirl. I've always been Supergirl. I should've told you so long ago, I know that. I just kept making excuses because you've been hurt so many times. And, I convinced myself that I was protecting you and then one day you were so angry with me, with Supergirl, but you still loved Kara. And I just kept thinking, if I could be Kara, just Kara, then I could keep you as a friend. I was selfish and scared and I didn't want to lose you. So, I kept pretending and I never stopped. And every time I kept my secret from you I wasn't protecting you, I was hurting you just like everyone else and I am so so sorry. I am so sorry.
Brainy: Strong enough to destroy all life across three solar systems. But we face an even graver problem. Supergirl’s cape has been destroyed. Alex: Oh, yes, well totally forgot about the risk to life across three solar systems. Brainy: This is no time for sarcasm!