I think one of the hardest things for me at least is the loneliness. I try to fill the space with friends, and family, but still, losing my best friend of 7 years, that's hard. There's so many times during the day where I think "I want to tell her this" or "she would think this is funny" or "I'm gonna buy her this little gift". Then have to stop myself. It's a big hole and it doesn't seem to be getting smaller.
