Gunsmoke - Season 18 - Eps 18: Patricia
Newly falls in love with a woman he met while tending the injured after a tornado. It doesn't take him long to decide to ask to marry her. Doc notes an odd bruise on her arm and her lack of energy. After an exam he wars with his conscience over whether to tell Patricia that she's got a rare blood disorder. He tells Kitty, Matt, and Newly before he marries her. She dies shortly after in Newly's arms and prompts Newly to go back to studying medicine.
About Gunsmoke

Title: Gunsmoke
First Air Date: 1955-09-10
Last Air Date: 1975-03-31
Status: Ended
Rating: 6.6/10 (from 102 votes)
Language: EN
Seasons: 21
Total Episodes: 635
Network: CBS
Genres: Western, Action & Adventure, Drama
Production Companies: Filmaster Productions, Arness Production Company, CBS
Synopsis
Gunsmoke is an American radio and television Western drama series created by director Norman MacDonnell and writer John Meston. The stories take place in and around Dodge City, Kansas, during the settlement of the American West. The central character is lawman Marshal Matt Dillon, played by William Conrad on radio and James Arness on television.
Cast

James Arness
Marshal Matt Dillon

Amanda Blake
Kitty

Ken Curtis
Festus

Milburn Stone
Doc

Woody Chambliss
Woody Lathrop