I think the mangaka intended this reconciliation scene to show Ruby's strength, but to me it reads as Kana dodging responsibility for hurting her friend. Which... is a little ironic because the chapter just showed how Ai was shaped: she showed a strong face so people continued to be cruel. I could be reading this wrong and this is exactly the mangaka's intention.
I think the mangaka intended this reconciliation scene to show Ruby's strength, but to me it reads as Kana dodging responsibility for hurting her friend. Which... is a little ironic because the chapter just showed how Ai was shaped: she showed a strong face so people continued to be cruel. I could be reading this wrong and this is exactly the mangaka's intention.