No, it does not necessarily make you a bad friend. Sharing personal information, such as your resume, is entirely up to you, and you have the right to decide what you are comfortable sharing with others, including friends. There could be various reasons why you chose not to share your resume, such as privacy concerns, confidentiality, or simply not feeling ready to share it at the moment.
Being a good friend doesn't mean you have to share everything about yourself with others. Healthy friendships are built on trust, respect, and understanding of each other's boundaries. If your friend is upset about your decision, you can explain your reasons for not sharing and reassure them that it has nothing to do with your friendship or how much you value them.
It's important to have open communication with your friends and be honest about your feelings and boundaries. Being a good friend means being supportive, caring, and respectful, and it also means respecting each other's individual choices and decisions. If you continue to be there for your friend in other ways and show that you care about their well-being, it can still be a positive and meaningful friendship despite not sharing your resume.