Yes, it does. A mother sticking around for her children for years after their birth is an evolutionary trait that's much older than love. Eventually, it also became an advantage for the father to stay and help out as our species became more and more dependent on groups instead of individuals. So it follows that natural selection would award those males who exhibit hormones that make them feel attached not only to their children, but also to their mates because this increased the chance of the survival of the entire group. After ages, these hormones have become so powerful that love is a very complicated and an unimaginably powerful emotion humans experience. This comes at a cost, obviously. In fact, this is a perfect example of Evolutionary Altruism.