The true opposite of love is not hate but indifference. Hate  bad as it is  at least treats the neighbour as a thou  whereas indifference turns the neighbour into an it  a thing. This is why we may say that there is actually one thing worse than evil itself and that is indifference to evil. In human relations the nadir of morality  the lowest point as far as Christian ethics is concerned  is manifest in the phrase  T couldn't care less.'
Joseph Fletcher
indifference, apathy