Rather than add to this debate, I would like to highlight some aspects of love as you cross the forties threshold:
Sharing your near distance spectacles with your spouse
Making sure to buy figs or soft fruits along with any apples/pears that you may like
Giving up sugar/salt in your diet
Going for a walk each morning with your spouse even if you would rather spend the hour doing a step class/play a round of golf
Using headphones to listen to your favourite radio/TV program instead of turning up the volume
I am sure there would be hundreds more examples of what love means to each one of us...