First of all, I must admit that as I write the story, characters objectives are not identifying with the idea I had in mind.  It seems their objectives are bringing the story into a different direction with the same plot.   

The problem I think is, I thought I knew early before creating the story who the protagonist and antagonist were, but it seems like the antagonist actually may be Tya's husband, Miller.  Why? Because Miller's gambling habits are conflicting with Tya's desire to have a happy, loving and supportive marriage with him; however, she seeks get what she needs from Sayon; therefore, she commits adultery.