I don't feel 'love'. I have a girlfriend. This isn't normal.
I feel absolutely insurmountable frustration and hatred towards people. Hatred is stronger. At least for me personally.
Statistics show negative feelings are 'more powerful' than positive feelings. For example, if asked to fill out an online survey about something, people that really dislike the item they are voicing an opinion on are far more likely to actually get on their computer and get us results. This has been echoed through hundreds of surveys and statistical analyses.
The promise of the chance of companionship is far stronger than the promise of the chance of revenge.
A petty sense of fleeting satisfaction is all one has to gain from hate.