'Unconditional Love' by itself is an oxymoron. You love someone because of who they are, and how they make you feel by what they do.If unconditional love existed, orphans would not be suffering, since they are children too, just not everyone's child.People wouldn't have bare minimum conditions when looking for a spouse and so forth.Unconditional love can only exist in a universe where humans are born perfect, thus no need on setting conditions for loving someone.Even God doesn't love humans unconditionally, if so the concepts of heaven/hell would not exist.