Your logic is flawed at the very core. Hate is not the opposite of love, indifference is. Also you are confusing love and lust. When you first meet someone interesting, you get the butterflies, and if things go well, you both start falling in love. You are wanting to spend time with each other, you love talking to eachother and if all goes well, you start the confusing rituals of exchanging bodily fluids. And if you are also comfortable with eachother in this department, things progress. You might star a family together, you move in with eachother and you intertwine your lives. You might even marry. But gradually over the course of years, the feelings of lust (feeling of inlove) fade and if all goes well, they are replaced by the feelings of love, which is really just a form of psychological addiction to the good hormones the other person makes us produce. If we're lucky, we also make the other person happy and are so intertwined. But sometimes it happens that some one else might trigger stronger hormones release and the (or we) fall for someone else. And the cycle begins again... The trick is to recognize the early warning signs and steer clear of temptation. That's where the wise saying comes from that the if the grass is greener on the other side, that is because it is fertilized by bullshit.
