The things is, I can't fully blame Brianna for the mess with her and Kail. If I recall correctly, during the episode when they first filmed the original girls' reaction to Brianna joining the show, Kail was the main one who acted all disgusted at the thought of Brianna joining the cast. The other girls weren't thrilled, but they had more of a "well this is their show so they can do what they want" attitude vs. Kail who immediately started bashing her character. While Brianna and Javi added fuel to the flame, there was obviously already an underlying issue with Bri and Kail way before she even dated Javi.