No, I'm not ace and Is not that I don't understand, I do believe that a nsfw scene placed at the right moment can do that, but more often than not it just feel like it interrupts the story.
Personally when it comes to romance I prefer things like the plushie scene with Rhoun rather than just sex... and also I got extremely frustrated trying to read the smoke room only to be bombarded every two seconds with nsfw scenes :/
I still don't know how that thing and Arches were made by the same people.