Oops, it doesn't look like 'cross species love day' is a national day..

Other days

first love

First Love Day
embarrass your best friend

Embarrass Your Best Friend Day
ruby

Ruby Day
me

Me Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
prosecco

Prosecco Day
raise awerness of zeus

Raise Awerness Of Zeus Day
stress awareness

Stress Awareness Day
one

One Day
my little pony

My Little Pony Day