Is there really such a thing as unconditional love?
Of course there is. Well, with certain reservations and qualifications.
Being that "love" is an emotion caused by the firing of chemicals and neurons in the brain, I would say yes. There are many different types of "love" (love for one's child,romantic,etc.) So the question is vague but ultimately because emotions are chemical responses, I would argue yes. These feelings can be unconditional but they can also be controllable.