Aceflux is an identity within the asexual umbrella; aceflux people's sexuality fluctuates, and that fluctuation is generally all or almost all within the asexual spectrum. But what does that mean? Well, my previous blog noted, there's several micro-labels and labels that exist under the asexual umbrella, and an aceflux person might be asexual (the sexuality, not the umbrella term, yes it's a tad confusing) one day, and then the next day they might be fraysexual, or demisexual, or lithosexual, or potentially even any form of allosexual (the term for all non-asexual sexualities; anyone who feels sexual attraction on a regular/consistent basis). People who identify as aceflux might also identify with other non-ace sexualities, such as bisexual, homosexual, pansexual, etc, and generally for aceflux people the gender they're attracted to stay consistent across any day that they do feel sexual attraction in some way.
A similar sexual attraction is Abrosexual, but the ace sexuality and who the person is attracted to can change from day to day; an abrosexual person might feel fray-bisexual one day, and litho-heterosexual the next, and recipro-pansexual the day after that.