How do you help someone that will not leave you alone and says that they love you even after you break up with them?
You can't help them, they are going through a lot of pain. If
you don't want to be with them, you need to make it clear that it
is over, and ask them to leave you alone. Dating someone else will
help move the process along. Based on my experiences with the
wackier members of the male gender acquired while raising three
daughters, my sincere and serious suggestion would be to do two
things. One, tell this person to leave you alone. Two, if he does
NOT leave you alone, introduce him to one or more members of the
local law enforcement agency. Police officers and deputies are
pretty useful in explaining situations like this to goofballs who
don't know when to give up and go away.