Out of Sight, Out of Mind was, perhaps, one of my all time favorite episodes! The mere fact that he turns something "bad" on it's head and it turns out being the thing that makes the girl special in the end. I love that!

If there is fanfic, it's most likely on those early Buffy fansites. I don't know of many from that early era that have moved their stuff over to AO3 or ff.net but I could be wrong.

It is a pretty cool concept that could be run with pretty far!