When u want that person to be ur own possession, u will do
anythg to stop the others from getting near him/her, u want the
person to listen & do whatever ur way, even want that person to
giveup everythg just to be with you, even to break up with his/her
family, friends & love ones, etc etc... well its just one
example..... 
this is consider one problem as for this one selfish act can leads
to many heartbreaks.... 
