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

Other days

bow tie

Bow Tie Day
boy friend

Boy Friend Day
get funky

Get Funky Day
self appreciation

Self Appreciation Day
self care

Self Care Day
boyfriend

Boyfriend Day
promposal

Promposal Day
first love

First Love Day
gallery

Gallery Day
fiancee

Fiancee Day