Romeric is a duaric orientation, referring to mlw (men loving women). It can refer to straight men, bisexual men, pansexual men, and any other men who experience attraction to women. The term is typically not used as an orientation on it's own. The term is typically used by non-straight men to talk about their attraction to women, but straight people are included in the definition.
The female equivalent to romeric is julietian.
History
The term appears to be coined along with the flag on June 27, 2018 with a submission to the Tumblr blog beyond-mogai-pride-flags[1]. The names romeric and julietian were based off Romeo and Juliet.