Why do we hurt when our loved ones die?

Butiadoreyou! - rambings of an awkward twentysomething ― In loving memory of Thomas, Cara, Amy and Saila. Friends who have all taken their lives since October, Thomas being the most recent two days ago. I light your candles nightly, and hope that you guys are together and well, wherever you ended up. Remember that I love you, and i'm fighting hard for the strength to go on. There's more to this, as well. It's a side we don't like to look at, but nonetheless, it's there.We hurt when our loved ones die because humans are naturally selfish with regard to[...]