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

Other days

hoodie

Hoodie Day
blanket fort

Blanket Fort Day
offer

Offer Day
bow tie

Bow Tie Day
boy friend

Boy Friend Day
promposal

Promposal Day
singles

Singles Day
lisp

Lisp Day
aloxolt

Aloxolt Day
hot chocolate

Hot Chocolate Day