Interesting and quite original plot.
But I don't see, like so many seem to do, how you could easily go from this to a Harry/Susan relationship or even friendship. "Oh yeah, Susan, I saw Voldemort attack your home, but I didn't think it important enough to try to warn someone, because it was a vision like when my godfather died. Not that Voldemort had any reason to send me a false vision about you, since I didn't know you all that well." "Oh that's alright, pumpkin, Nothing important happened, now kiss me, my hero."
Otherwise a good story (but mind the "Dutch capital"). I like H/L and H/S or both together, but please no Hermione. It seems like every harem or polygamy story recently has Hermione as the head harem girl, ugh.