Oops, it doesn't look like 'boyprend day' is a national day..

Other days

buddy

Buddy Day
ride the wind

Ride The Wind Day
tulip

Tulip Day
fiancee

Fiancee Day
nail polish

Nail Polish Day
donate your hair

Donate Your Hair Day
bow tie

Bow Tie Day
pick me

Pick Me Day
self care

Self Care Day
one

One Day