This is what I think would have happened on 4x20 of supergirl, if Kara actually told Lena.
Kara's POV
I could see Lena was panicking. She didn't want to hurt me.
"Kara please", she said, "I'm trying to apologize to you. That explosion could have killed you."
I was screaming on the inside as I made a quick decision, "it wouldn't have." I say, reaching for my glasses. I carefully pull them off, to reveal to Lena that I was supergirl.
But, my best friend was already turned around.
"Lena..."
She went on talking. She was so broken, it hurt me, "I don't ever let my guard down. Ever. And I did it with Eve. And she betrayed me."
My lips quiver, I fight back my tears. She has to know. I feel so bad for her, but she has to know.
"I let her in, and she lied to me," She said through her tears, "every day to my face about who she was."
My heart is beating so fast now. Technically, I had been lying to her every day about who I am. My confidence in telling her slowly fades, but I keep my glasses off.
"And that's what hurts. I don't know if I'll ever recover from it. But I know that there's no way I could trust anyone ever again, if it wasn't for your friendship and integrity."
"Just... it means the world to me Kara" She says. I can't possibly tell her now!! She will feel betrayed!! I move to put my glasses back on my face, but she turns around. She sees me, without my glasses. I freeze for a moment, "I-I'm always gonna be here for you" I say, my voice breaking.
"Kara...." Lena says, reaching out to stop me from putting on my glasses.
I take a breath, "The explosion wouldn't have hurt me... Because, I'm her."
Lena's POV
"The explosion wouldn't have hurt me... Because, I'm her."
The words felt like sharp knifes piercing my skin. I've had my suspicions, but this, this is so real.
"No... No, you're... Kara" I start to cry, shaking my head.
Kara tries to hug me but I pull away, "no, I can't. You're just another person to betray me."
"Lena... I wanted to tell you, but-"
"but you can't trust me. Because of my last name. God Kara, I thought you were different."
I could see my words hurting Kara, she began to cry. I turn away so I don't have to see her in pain, it will only make me feel worse.
"No! Lena. Lena!" Kara grabs my arms and turns me back to her. She is so strong, even when she's being gentle. Now I know why.
"Kara, don't. You could have told me so many times. I just admitted a few days ago that I was working with Lex!! I told you everything... But you aren't who I thought you were I trusted you!! Yes, Eve lied. But you, Kara you meant everything to me! God this is even worse than I-" I was sobbing, and had more to say. But Kara had another idea.
She grabbed my cheeks and kissed me. I gasp, pulling away from her, "What was that?!"
"I... I don't like hearing you in pain. " She says weakly.
I press my lips together in a tight line, then I cave. I kiss her again for a second before pulling away, keeping my face close.
"I'm still mad at you." I whisper.
"I'll explain everything! I promise!"
Should I write a full story based off this?? Or leave it at this?