I'm afraid that if you look at a thing long enough, it loses all of its meaning. -Andy Warhol
Andy Warhol's quote about how things get boring and mundane in life is only true if you let it become true. Sure pieces of art and material things may become old, and boring after a while unless they hold some sort of sentimental value to us, but the relationships we share with ourselves and with the circle of people around us should never get boring. In order to avoid this, we must be as spontaneous as possible. Try taking doing one spontaneous thing for your lover weekly, including but not limited to, taking them out to a place you know they love but they know you hate.