I came in to say apathy. Looks like I’m not alone.
Celibacy. 
Marraige?
My initial thought was “apathy,” but that doesn’t work for me. For me, the simple answer, “hate,” is the one. It depends on how you define opposite. For me the opposite of “great positive feelings” towards a person is “great negative feelings towards a person,” which is “hate.” For me the opposite of “apathy” is “interest.”
That’s my answer, and I’m sticking to it.
Another vote for indifference too.
Having similar qualities doesn’t preclude something from being an opposite.
“What’s the opposite of hot?”
“Cold.”
“No, cold is very similar to hot: They’re both temperatures; both of them can kill you if they get too extreme; they’re both found as labels on sink faucets…”
Or, to take a mathematical example, the opposite of 1 is -1, not 0 or i.
So, I vote for hate as the opposite of love.
It really does depend on what continuum you’re talking about.
If it’s positive-negative feeling, then love and hate are opposites.
If it’s intensity of feeling, then love and hate are similar and indifference is the opposite of both.
I am going with spite. If there was a coin spite would be on the other side. Both are some of the most motivating and long lasting emotions. Deep, piercing and require us to tap into our insecurities and vunverabilities to be effective. For something to be oppisite it must have many similarities. Not just mostly different. Indiference i os juat in the middle, hardly opposite.
I say fear.
Hate is rooted in fear, as are most negative emotions.
I think fear fits as a better true opposite than indifference. Indifference is a total lack of love, but not its opposite.
Science.
Atheism
There’s also the question of focus. Love is focused on one or a few people, so its opposite in that sense should be aimed indiscriminately. Malice; greed; some kind of indiscriminate desire to harm or exploit others regardless of who they are.
Yes.
YaraMateo, have you ever had someone you’ve loved entirely shatter your heart into so many pieces that neither the king’s horses nor his men could do anything to put it back together? Remember when you stopped feeling sad and just felt angry? Have you ever encountered the person in public after the split, or had the name mentioned in a conversation, and felt a flash of anger course through your body? Do you remember regarding that person with hostility, and if ever a tale of that person’s ill-fortune passed by you, you couldn’t help but to have the corners of your mouth turn involuntarily upward? Then do you remember the day, a long while later, when you ceased to think about that person at all? And if the topic ever came up, you regarded it the same way you would a friend telling you about some sale she took advantage of? “Oh, that’s nice,” you would think, and that would be it. That’s the opposite of love, when you just do not feel a single thing for that person anymore. If you feel even the slightest pang of animosity, you still care.
What he said.
Good post. To answer you, yes. I’m a strange person. I don’t feel much indifference. I tend to either like or dislike things. Usually, loving or hating things. So, while I can see why it’s indifference. I see it as hate. Both answers are valid now that I think about it.
The opposite of caring is indifference. Love is caring about something in a positive way, and the opposite of that is caring about something in a negative way, which is hate.
So, is the opposite of curious bored?
:)
I am enjoying the responses and the thought processes behind them.
EVOL
Which is EVIL spelled badly.
Yes, I agree with Thudlow Boink completely. This ‘indifference’ argument seems downright silly to me.
Is the ‘big’'s opposite ‘average’? Is the opposite of ‘winning’ a tie? Is the opposite of ‘profit’ to break even? Is the opposite of ‘extreme success’ ‘abject mediocrity’?
I’m pretty sure the actual answers are ‘small’, ‘losing’, ‘loss’, and ‘miserable failure’.