When one person is no longer interested in being in the relationship, it should end for both of them. This is normally what happens, but there are times when leaving causes stalking issues with a former partner. While it is expected that the person who has been left might experience emotional upheavals, stalking is another matter entirely. It is a symptom of being obsessed with the former partner, and it can be very dangerous.
For those who have had to deal with a former partner who will not let go, there have been few solutions in the past. Some of them have found the only way to deal with it is to move far away, but others have stayed and faced the issues. For some it has been nothing more than a nuisance, but others have faced physical injury or death. Authorities in many areas have finally begun to recognize the danger, but it is still up to the former partner to know what to do about it.