Golden WitchBreed by: Mary Gentle
Got to read this in high school. This is another world story. The human female on the cover was sent to the planet to talk to them about peace. The one guy tries to kill her but turns around and agrees to be her body guard, they become very good friends by the end of the story. It's not a romance, tho i wish these two would have fell in love, he protects her as if he does love her.