Christina is stupid and weak

She is too stupid to realize that no small percentage of the students at her Ivy League college got in because of the influence, connections and money of their families and what Sonny did was no different. She was too weak to stand up to the students who treated her badly and to point out that many of them were there under the same circumstances. She is also too stupid to recognize that she is being used and played by Trey. She is just a spoiled brat who wants more attention from her parents.