Write about a secret being revealed.

 I recently found out that I was adopted. I’ve always thought my adoptive parents were my biological parents. I mean, I look just like my mom. It turns out that they’re my grandparents and my sister is my mom. My biological mom had me at a very young age so my grandparents took me in. I kind of felt betrayed and I felt hurt but I know they did it for all the right reasons.