Are there any stories that feature Xander having an unhealthy obsession with Buffy?

i.e. Buffy and Spike grow close and Xander's jealousy creates conflict.

Xander's behaviour in Dreamweaver's stories are a good example of what I'm looking for.

I'd prefer stories that include the following:

Completed.

Not AH.

Not post Chosen/NFA.

Not too fluffy.

Rated NC-17.

Well written and paced.

Stalk Her by Jypzrose is a good one for this I think.

This one takes Xander to the extremes of Buffy obsession -

Beloved Slayer by ImmortallySpuffy