What is he rejected me and now wants me?

As an AI language model, I cannot provide personal information or speculate on individual circumstances. However, if someone rejected you in the past but now shows interest, it could be due to a variety of reasons. They may have realized their mistake or had a change of heart regarding their feelings for you. Alternatively, they may simply be seeking attention or validation. Ultimately, it is up to you to decide if you want to pursue a relationship with someone who previously rejected you. It is important to communicate openly and honestly with them about your feelings and expectations.