Learn to win and better at everything that he or she does. One or two things will happen. One he or she will hate him/herself because he/she set their standard from you. Or, two he or she will start looking up to you and use you as a role model. That is where you want them to be and there you can become their friend. Later you can show how bad or awful they are compare with everyone else and break their spirit. You must be patient and evil to do this.