Calm down: Not having sex is for that
article mostly just an exaggeration
for a catchy headline. Of course they
are having sex but likely less sex
and less in love with commitment,
caring, affection, intimacy, passion,
joining of lives, vows, romance,
trust, respect, responsiveness,
supportive families (e.g., he gets
a job in her father's business),
collection of activities, memories,
and traditions like, don't want to lose,
can't get anywhere else, and that cause
'lock in',
homes ("where the heart is, where you are
loved even when you are wrong"), and children
("the most rewarding thing we did").
And why not just
more one night stands? Because they
are short on commitment (feel alone
and, thus, scared in the morning),
caring, ..., children.
And just for passion,
a good version requires the couple to
have had a lot of time together and to
care about each other -- e.g., for a man,
the best result of passion is that, net, she
smiles the rest of the evening, the next
morning, and well into the next day,
and that takes some mutual caring,
practice, and effort.
Why so value the smiles?
Because they promise 1000 more good
evenings of passion instead of maybe 0,
lots of good back rubs, a nice breakfast,
lots of 'contact comfort' for, say, another
24 hours, etc.