They do just the opposite. One would think there are lots of things one can engage in other than romance, such as nurture a relationship with a pet or a hobby of some sort. But romance is essentially the only activity that stimulates so much energy in a person. A pet may be somewhat stimulating but acquiring objects won't help. Objects are attainable.
Love is about struggling to attain the unattainable.
A few days ago I was chatting with my haircutter whether it would be possible to spend 500,000 yen a month without acquiring objects, such as go on a trip or eat out. My haircutter was of the opinion that it would be difficult. Objects look fulfilling but are not. Yes, your heart has to come first. Japanese society today lacks the heart.