"Unconditional love" in a porn video tag refers to a theme or scenario depicted in the content. In this context, it means that the characters involved engage in sexual activities out of pure affection and care for one another without any conditions or expectations attached. The focus is on mutual support, appreciation, and emotional connection between the individuals, which often leads to passionate lovemaking. This tag usually implies a more sensual and intimate approach to adult content rather than a focus on hardcore or rough interactions.