"The opposite of love is not hate it is indifference."
This quote always has a powerful impact on me.
I am rarely irritated by people who show emotion; even if it is the opposite emotion as I have for something. They are emotionally engaged - 'alive' in my terms. I can have a passionate and at times deeper dialogue with them and even have the opportunity to change my perception or world view - if I am open enough - as only through diversity will we grow and become sustainable - personally and professionally.
I used to think in IQ Newtonian terms, that hate was the opposite of love and then realised that the opposite of love is to be totally indifferent towards something.
To be indifferent means that you have NO emotion, no life, no love, no interest in a subject which the other person may base their life on by 'loving' it.
Where have you encountered indifference and how has it made you feel? Indifference kills any possibility of a win/win - a joy sharing of life, love and hate.