Variety is the spice of life as one would say, and liking romance & cute stuff doesn't exclude you from enjoying action or grim stuff either way.
Josei (女性) is defined to be primarily aimed for adult women (as a counterpart of seinen), but the original definition doesn't mean much now as Shonen titles have a huge female userbase for instance. Also the yuri mangas I read do fall under the josei category in general, as they mainly focus on romance/drama.
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However, I don't pay too much mind as the distinctions between genres are easily blurred nowadays.
100 Girlfriends is for example seinen (published in Young Jump Comics) even if it looks like shounen on a first glance, whereas
Yagate Kimi ni Naru/Bloom Into You was published in a shounen magazine (Dengeki Daioh) despite it could be labelled as josei.
Come to think though, I wouldn't be surprised if female japanese authors make up a large amount, if not a majority, in mangas I've been enjoying.