Oops, it doesn't look like 'best friend couple day' is a national day..

Other days

hiv awareness

Hiv Awareness Day
my little pony

My Little Pony Day
blanket fort

Blanket Fort Day
ormille

Ormille Day
slime

Slime Day
reading

Reading Day
one

One Day
self appreciation

Self Appreciation Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
cursing

Cursing Day