Polarsexual is term for people who switch between strongly feeling sexual attraction to being completely asexual and/or sex repulsed, with no in between state.
The romantic equivalent is Polarromantic.
History
The term was coined by an unknown on or before July fourth of 2016.[1]
Flag
The flag was coined on or before July fourth of 2016 by Mod Hermy on Tumblr user pride-color-schemes account.