I did not forget romance; I just don't consider it a genre in quite the same way. I mean, I read historical romances, SF romances, mystery romances... all of which have less in common, genre-wise, than they have differences.
I dunno, I think it's a matter of emphasis and focus, really. If the story is, at heart, about how two people meet, fall in love, and get together... then it's a romance. The background (historical, sf, mystery) is just eye candy.
OTOH, there are historical, sci-fi, and mystery stories that are about the main plot problem, whatever that may be, and if there's a romance thrown in there, it's just a bonus.
L&C, to my mind, was a romance with scifi/fantasy interruptions
We can change those trappings, in a soulmates story, and not lose anything too important.
Stargate SG-1, in contrast, is about the stories. I like the characters and all, but the show is not about them; they're there to advance the plots. Even the occasional moment of Jack/Sam angst is only thrown in on the side, where convenient.
hmm, I wonder if this will have made any sense...
PJ