Matt gets his only kiss in the whole series in this episode. He gets more than a kiss. See the movie followup, Gunsmoke: The Last Apache (1990).
Michael Learned tells Matt her name is Mike, just Mike. The actress told people many times it wasn't Michele but Michael. This is humorous how the nickname for Michael Learned is Mike.
Toward the end, as Matt walks up to confront Dean, James Arness's limp from his World War II wound is quite noticeable. His limp got progressively worse as the series went on, so that filming sequences had to be changed to accommodate this.