To me, her character only became unbearable after she broke up with Casey for the second time. Just the way she still flounced around Angelo's and Braxton house like she owned the place and was part of the family. Not to mention her acting so above the 'Braxton drama' when she caused most of it. Oh and also her and Casey ending things and then still trying to get back with him, whilst also being jealous about Phoebe and Kyle.
I'll admit though, that I did like her when she was organising the festival, I just didn't like the fact that she was doing it with Kyle.