Was stone and Blake of gunsmoke having an affair?

There is no definitive evidence to suggest that actors James Arness (Matt Dillon) and Amanda Blake (Kitty Russell) of "Gunsmoke" had an off-screen affair. While they shared a strong on-screen chemistry and a close friendship, both maintained their personal lives separately. Rumors may have circulated due to their dynamic on the show, but these remain unverified. Ultimately, any claims about a romantic affair are speculative.