Argh Harperlee. "Get over it" is one of the least helpful things someone can say to you although I don't blame your roommate as she did't really sign up to be a grief counselor.
When I went through the grief, I didn't have anyone who understood nor supported me. It was before the internet. The friends and family around me would get angry with me for being upset. This is kinda why I am here as I don't want folks to have to go through it alone even if the support is just electronic.
Please do embrace the anger. Grieve the loss. Ride the rollercoaster of whatever emotions come. It is unfortunately the only way. You will get better but it takes time. And as you have probably heard, "Time takes time."
