Oops, it doesn't look like 'best friend we soul mates day' is a national day..

Other days

girl friend

Girl Friend Day
youth

Youth Day
carpenters

Carpenters Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
blanket fort

Blanket Fort Day
lost sock memorial

Lost Sock Memorial Day
ask out your crush

Ask Out Your Crush Day
hannah

Hannah Day
my little pony

My Little Pony Day
boy friend

Boy Friend Day