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

Other days

boba

Boba Day
artists

Artists Day
one

One Day
self care

Self Care Day
brow

Brow Day
frozen yogurt

Frozen Yogurt Day
girl friend

Girl Friend Day
lash

Lash Day
kiss a ginger

Kiss A Ginger Day
youth

Youth Day