I know lots of people hate me; because I am bad. But few people surely love me; bcoz they know that my little goodness is not fake!
It is always better to be frank in life than being falsely nice. Because frankness may create some true enemies but fake niceness may lead to untrue friends.
Calling someone fake wont make you real. Calling someone ugly wont make you pretty. Calling someone stupid wont make you smart.
Being nice to someone you hate does not mean you are fake. It means you are mature enough to tolerate your hate towards them.