Intimacy

 Briefly: humans have four need sets.

Two to maintain the individual self: 'selfish need' sets.

And two 'social need' sets, of which both these social needs sets are in massive deficit.

The 'Intimacy needs' set if these two Social Needs' sets (sex, romance and friendship) have been most heavily decimated in the past four decades.

Exponentially so in this 'pandemic'.