First I believe that the term "Love" in English is quite distinct and very different from the word "Like" or a momentary enjoyment. People in common vernacular say they "love" x when they really mean they like or enjoy x momentarily. ie "I love chocolate ice cream".

Love is far more than an emotion - but a self sacrifice, and dedication to something or someone. Love is a daily choice as one of my former teachers reminded me. If you love your dog or kid then you will have to sacrifice and do many things which you may not find that enjoyable & pleasurable. Not many people find it pleasurable to have to pick up their dogs poop, always pick up the doggy hairs and wipe their kids poopy butt, nor get up at 2am to feed their crying baby. But if you truly love them, then you are dedicated to them and will sacrifice yourself and other wants for that person, animal or goal. Love involves very tough, dispassionate critical thinking, self sacrifice, planning, hard work, and a lot of risk, sweat and tears (both happy and sad). It is not a whim
Whim: a capricious or eccentric and often sudden idea or turn of the mind

Hate is the FLIPSIDE of love. Love and hate are not exactly mutually exclusive- it is merely the inverse of love- the shadow of love. you can not really have love without hate- it is like trying to have Yang without Yin. In fact, in love you find things that you really hate- again who exactly "loves" to pick up dog poop? While love is about self sacrifice, hate is about the sacrifice of others for the goal or end

For example- if i hate robbers and robbery and love peace, truth, innocence & justice etc, i sacrifice the robbers for my goal of protecting truth, the innocent, peace and justice etc.
Love and hate without action is just a fleeting thought- or a fart.