My older sister and I have a tight bond. We grew up needing each other, having shared some very tough times. We’ve kept each others’ secrets, held each other in the dark, and put up with our crazy stunts. As adults, we still alternate playing the part of mother and daughter to each other. Quarrels happen, of course, but it hurts too much to stay angry for long, and not a day goes by when we are not in touch in some way.