Characters
My dear, it appears that we may have to re-define the nature of our relationship.
— Doc · Tombstone
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
With courteous, formal phrasing, the speaker addresses someone as 'my dear' and says the way they relate may need to change. The polite wording softens what is a significant announcement, hinting that the old arrangement no longer fits and a new definition must be found.
Context reviewed