I can understand you asking why am I writing romance stories?
After all, to many people I wrote either ghost stories, or sci-fi stories, and men don't write romances.
But, you are forgetting one thing. I class myself as a writer.
In the present reading climate, romance writing is the most popular genre, on Upwork there is a constant stream of requests for various romance stories.
There is no reason for me not to write romances, unless you object to a man writing romances.