I don't know what romance or being 'romantic' is tbh. Am not sure men have different brains overall, but I do know they likely wrestle with the expectations of hegemonic masculinity (am not a feminist but that phrase fits well here) so are caught between that and wanting to please their partner. Romance is seen as a 'woman's' thing.

When I was dating men I liked getting flowers too, but spontaneity was preferable. I think it would have been romantic to spend a night camping under the stars and cuddling up together, or spending all day and most of the evening in deep conversation about something we were both interested in, feeling relaxed enough in each others' company to fall asleep in each others' arms and see where things went from there.