Baseline Raph would be all to quick to pick up the hurt through the bitterness, but this Raph, our Raph, is too clouded with confusion and rage to see what's right there in front of him.

Until it suddenly isn't.
For a moment he does nothing but watch her go, but that moment doesn't last long. And Raph, being both Shang and Ninja, moves faster than most. In no time at all he's cutting her off at the pass, standing between her and the direction she was heading.

"If I can't walk out without sayin' goodbye, then you can't either. We're settlin' this. Now."