In [Mackenna's gold](http://www.imdb.com/title/tt0064615/fullcredits/), there's a scene where Mackenna is held captive by Colorado and where Mackenna meets Hesh-Ke again after a long time. 

At the start of the scene, we see Colorado dragging Inga out of a room and throwing her on the ground. Nothing else is indicated and Inga seems emotionally fine afterward. 

This made me wonder...Is there anything in the movie that indicates that Colorado and Inga were in relationship prior to that scene? Did he rape her? If yes, then why is she shown as emotionally stable after the incident?