Broken heart
For most bereaved individuals, the journey through grief will ultimately culminate in an acceptable level of adjustment to a life without their loved one. The Kübler-Ross model postulates that there are five stages of grief after the loss of a loved-one: denial, anger, bargaining, depression and acceptance. And while it is recognized that mourners go through initial period of numbness leading to depression and finally to reorganization and recovery, most modern grief specialists recognize the variations and fluidity of grief experiences differ considerably in intensity and length among cultural groups, individually from person to person as well as depending on the amount of investment put into the relationship.
Breakup
A natural effect of the loss of a relationship that an individual had hoped to keep is grief, because the desire to keep relationships intact despite problems and complications is a natural human desire. This results in individuals undergoing a breakup displaying grief reactions that include symptoms like sleeplessness, depression, and thoughts about suicide. This tendency to express grief and depression is so prevalent that researchers point to it being a significant contributor to the first onset of major depressive disorder in young adults.