People don’t believe you when you tell them you love them unconditionally, because they think that means loving immortally, undying, forever. There is an innate, automatic rejection of undying love, because it is a falsehood, and we all know this deep-down. Human love is a living thing which can die. But while it lives it can be unconditional. Like a plant, it doesn’t care about your moral choices. It might be a coddled, soft, fragile houseplant, or a tough little sprout that fought it’s way through the concrete crack, and is flourishing in the cold wind, but either way, it doesn’t care if you walk by naked, waggle your dong at a passing child, spit on a dog, then wander off. This living thing only cares if it is fed, watered, cared for, or killed. The strongest plants can live with no human contact for years, taking in nutrients from the rain and soil and sunshine around them- self sustaining. The trees of the world, breathe slow, live long. But a loving hand can bring them to a state of lush growth more beautiful and verdant than ever before.
Love can be torn out by the roots, or cared for and caused to grow, but it is innately self-centered. It would take the strangest human mental acrobatics to stop loving someone because of behavior unrelated to love.