[The painting is Magritte's The Lovers (1928)]
Romantic love is one of the most addictive substances on Earth
says biological anthropologist Helen Fisher, member of the centre
for human evolution studies, Rutgers University, New Jersey.
After the lust settles, testosterone & oestrogen take a breather,
dopamine (euphoria), noradrenaline (racing hearts, palms sweaty),
serotonin (loss of appetite, obsessing) kick into action.
Love’s burst of chemicals tend to time out over time,
but two hormones bind the hearts as soul mates: oxytocin
gets you attached, vasopressin less promiscuous & primed.
Shall I compare thee to a summer’s day or a hormone,
Romeo Romeo, wherefore art thou Romeo & not dopamine,
your sweet little hands sweaty with noradrenaline
sorry about eating the plum in the fridge but studies indicate
given extra vasopressin the promiscuous male
meadow mole may become a very faithful mate.