LOL always going for Spike's nose, Buffy is. Hit first, ask questions later *g*
But when Giles eh Ripper was checking her out she did believe Spike that something was wrong. Well this was definitely not Giles' normal behavior.
So Tara isn't biased like some other Scoobies *cough Xander cough* when it comes to Spike. And was the one to discover that coin, not Willow. Willow was rather smitten with the power of it. Not so good.
And a Celtic writing on the coin? I wonder if Anya knows what it means.. she has come around in the world.

I'm loving this! The big bad doing his laundry; his sudden need to protect Buffy's virtue; Giles chained in his own bath tub....

And yes it is indeed gross that he's making like Humbert Humbert but who can resist Ripper?

Intriguing plot; fluid writing; I'm hooked.