Romantic love is useless.
So, it seems that according to some studies, done by expert and psychologists, in general people can only feel the "great happiness" of romantic love for four years (average), then it all becomes a routine and most people will look for extramarital affairs or simply end their relationship and seek new "passions" elsewhere.
For me this proves that romantic love is the most overrated thing in the world, even more than sex itself (IMO).
Glad God made me asexual and aromantic. I know I will never hurt anyone.