The 7 stages of grief, depression being the fourth. Time to cry your eyes out. "Just when your friends may think you should be getting on with your life, a long period of sad reflection will likely overtake you. This is a normal stage of grief, so do not be "talked out of it" by well-meaning outsiders. Encouragement from others is not helpful to you during this stage of grieving. During ... [+]

The 7 stages of grief, depression being the fourth. Time to cry your eyes out.
"Just when your friends may think you should be getting on with your life, a long period of sad reflection will likely overtake you. This is a normal stage of grief, so do not be "talked out of it" by well-meaning outsiders. Encouragement from others is not helpful to you during this stage of grieving.
During this time, you finally realize the true magnitude of your loss, and it depresses you. You may isolate yourself on purpose, reflect on things you did with your lost one, and focus on memories of the past. You may sense feelings of emptiness or despair." - recover-from-grief.com [-]