text: "You will always be my son," is exactly how my mother would handle it. She said "You will always be Catholic," when I converted to Judaism.  My advice is this: Don't struggle to gain acceptance from family members. You are an adult (or will be one someday) and the only person that truly matters is YOU. When you worry, get frustrated, and even change plans because of anyone, you are giving that person, or group of people too much power. Be yourself and you'll be a much happier, healthier person.