premise: When we were dating , Nick wanted me to get highlights - and so I did that , and I got myself looking great . And then , on the day we broke up , I was like , I want to make my hair black now - I do n't want to look pretty ; I want to look hard - core . I was rebelling against everything Nick wanted me to be . And then I was like , I ' ve got to be by myself for now , and just figure out who I really am . What may have caused you to get highlights ?
hypothesis: I was tired of having my hair black .