In "One of Our Own," Calleigh said, "Ryan Wolfe sends his regards" b/c:
1. Ryan helped figure out who the mole was - that it was Monica
2. B/c Ryan had been kind of "undercover" working to find the mole for most of the season. H had told Ryan to put feelers out and make it his mission to find the mole, and it really was hard on Ryan - I think that might've been the beginning of the end for "likeable" Ryan, and the beginning of "gambling/screw-up" Ryan. It was a tough thing for him to do, and I think Calleigh said that line to acknowledge that, even though Ryan wasn't arresting the mole, that he played a big part in finding the mole.