@ kenikii love is just an evolutionary important distribution of hormones. A result of smelling that the genes of another person are very different from yours. I you don't think the smell of the person you love is the best smell in the world, it's not love but a crush. Having a crush is not to help evolutionary but to satisfy personal desires, to help your mental health. Crushes keep you happier and healthier than love. Crushes are more important for the individual while love will only hurt the individual but have a huge impact on evolution.