Yup, same thing happened to me though I picked the 'Random" AI. Noticed this after I picked up a companion at the Inn and entered the Homestead map. When I came out I was making all the dialogue choices for both characters which is more annoying than picking "loyal" as there you can just pick the correct responses you would have expected anyway. I wanted the fun of arguing my case and having a reason for putting points into intimidation or reasoning.
