I think homoflexible is where you're mostly attracted to the same-sex or same-gender but could be with someone of the opposite-sex every once in a while. This can be either a romantic or sexual relationship I think. Homoromantic bisexuals are those who are romantically attracted to the same-gender or same-sex but are sexually attracted to all sexes (with a preference). I don't know if romantic attraction is supposed to be towards people's identities or what people visually see. Can straight women be attracted to feminine-looking transmen? Is "feminine-looking" a bad term? Sorry for sounding cringe-worthy. :eusa_doh: I know that wasn't the question...
Keep in mind that neither is a recognized or widely accepted term, nor is there any credible evidence that there's a separation between sexual and romantic orientation. Therefore, the definitions are subject to change and you're likely to run into a bunch of different definitions. So, quite honestly, you can use whichever you want... or, if you want to use a more widely used definition, simply go with "bisexual". Simple, widely accepted, widely agreed-upon meaning, and no ambiguity