It is very difficult to answer this question without more information about your specific situation. People can be cruel for a wide range of reasons, such as jealousy, insecurity, frustration, or even their own personal issues. If you feel like you are being treated unfairly or differently because of your actions, then it is important to speak up and express your feelings. In some cases, addressing the issue directly with the person can help to clarify the situation. If you feel that the situation is out of your control, it is best to seek help from a trusted friend, family member, teacher, or counselor.