When I was a sophomore in high school, I got into a huge fight with my best childhood friend. We didn’t speak for a month, but one day, near the end of the school year, I broke down and sent her a text asking her to meet me by “the wall.” I stood alone at our usual social spot, biting my nails and trying to think of something to say–maybe even to make her feel bad. However, I couldn’t even remember what our fight had really been about. When I saw her walking toward me, something in my heart melted. This was my friend–my sister. I dropped my bag and…