Oops, it doesn't look like 'tribute to our exes day' is a national day..

Other days

boy friend

Boy Friend Day
carpenters

Carpenters Day
stud

Stud Day
me

Me Day
embarrass your best friend

Embarrass Your Best Friend Day
ask out your crush

Ask Out Your Crush Day
self care

Self Care Day
bow tie

Bow Tie Day
ruby

Ruby Day
eat what you want

Eat What You Want Day