Earp and Doc????!!!
Doc was crazy (probably a sociopath) and hooked up with the insane Hungarian woman. Earp was chasing what's-her-name....
in "Gunfight", the relationship between wyatt and doc seems much stronger than their relationships with the 2 women. Rhonda Fleming (i think it was)---wyatt's girl--plays almost no role at all, and Kate is mostly an excuse for doc to kill ringo. doc seems to be much more attracted to wyatt, and i think Kate even expresses some jealousy about the relationship.
watch the scene where wyatt comes up to doc's room before the gunfight and says something like; "doc, i need you".
the real, historical wyatt and doc were both straight. for all i know, the real curly bill was straight, too.
however, once these things get to hollywood, anything can happen.