Objectum sexuality is an unusual psychological phenomenon characterized by strong feelings of affection toward inanimate objects. It differs from fetishism in that the objects are not simply used to enhance or facilitate sex, but are actually the thing which the person's feelings of love and commitment are directed toward. Many objectophiles even believe that their feelings are reciprocated by the object of their desire.
From the documentary Married to the Eiffel Tower
From the documentary Strange Love: My Car is My Lover