That startles a quiet laugh out of him, and he can't even describe the well of relief that opens up and floods into his veins. No, Leo hadn't expected much sadness from his brother at the revelation, but this is... this is okay.

He knows it's because of him that Raph is taking the news so calmly. Hell, it's because of him that Raph was so ramped up over Monet in the first place. He really needs to stop making his little brother worry so much.

(Of course, Leo would miss it. This. The moments of gentleness and understanding that only come when he lets his guard down enough for Raph to stand as a shield instead.)

"Yeah. I know."