How do you hate somebody you once loved?

[Bill]

I would say it´s the mirror neurons in the brain. Once the mirror neurons are programmed in the emotioanal part of the brain it won´t go a away easily. So you have this neurons who act crazy when the loved one is there but once people get bored from one another there still are the neurons who crave the other person like a drug addict.

So once your mirror neurons are programmed things can get very ugly as the person is already in your brain an won´t go away soon. It´s like an guest who does not leave your home. It makes one crazy. That´s why coming together with crazy chics is quite a risk.

 

[Frontenac]

Cardguy, imagine your best guy friend, with whom you did a lot together, trusted, had their back, and assumed they had yours, turning on you. That feeling is about what it is.

I agree though that love and hate are the same. The ultimate insult to a former companion though is not hate, but as others have indicated, indifference.