Lithflux, also known as akoiflux, describes someone who either experiences attraction and only sometimes desires for it to be reciprocated, or whose attraction fades once in a relationship, but may come and go.
The term is an expansion on lith-, which is feeling attraction but not desiring attraction to be reciprocated or the attraction completely fading when it is.
Similar terms include lithosexual and lithromantic.
History
The term was coined and its flag was created by Tumblr user wavership on January 17, 2019.
Resources
https://wavership.tumblr.com/post/182093554099/i-havent-seen-this-coined-yet-so (original post)
https://www.aromanticism.org/en/uncommon-and-newly-emerging-terms