How was Superman react after Lobo told him Kara killed Krem

[u/Spare-Mechanic-8055]

Here is how I brought it down

Scene: Fortress of Solitude

Superman: "Lobo told me what happened."

Supergirl: "Of course he did."

Superman: "Tell me he's wrong."

Supergirl: "He's not."

Superman: "You told Ruthye not to kill Krem."

Supergirl: "Because she was a child drowning in grief."

Superman: "Then why did you do it?"

Supergirl: "Because I knew exactly what I was doing."

Superman: "That's supposed to make it better?"

Supergirl: "No. It's supposed to make it honest."

Superman: "Kara, we don't decide who gets to live and who dies."

Supergirl: "That's easy to say from Kansas."

Superman: "What is that supposed to mean?"

Supergirl: "You grew up with parents. Friends. A home. You learned hope before you got powers."

Superman: "And you think that makes my beliefs less real?"

Supergirl: "I watched Krypton die, Clark."

Superman: "So did I."

Supergirl: "No. You were a baby. I remember the screams."

Superman goes silent.

Supergirl: "Krem murdered families. Sold innocent people. Left death wherever he went. I spared him once and more people died."

Superman: "Then we stop him another way."

Supergirl: "There wasn't another way."

Superman: "There's always another way."

Supergirl: "That's what you want to believe."

Superman: "It's what makes us heroes."

Supergirl: "No. What makes us heroes is protecting people."

Superman: "Not by becoming executioners."

Supergirl: "I didn't enjoy it, Clark."

Superman: "That doesn't matter."

Supergirl: "It matters to me."

Superman: "And what happens the next time? What happens when another villain convinces you they're too dangerous to leave alive?"

Supergirl: "Then I'll make that choice too."
That answer visibly hurts Superman.

Superman: "Then that's exactly what scares me."

Supergirl: "You think I'm becoming something terrible."
Superman: "No."

Supergirl: "Then what?"

Superman: "I think you're carrying things nobody should carry alone."
Kara looks away.

Supergirl: "You don't have to agree with me."

Superman: "And you don't have to face it by yourself."

That kind of argument would fit James Gunn's DCU version of Kara, who is already portrayed as much rougher and more hardened than Clark, while still allowing both heroes to have understandable points of view, so what you think