Before releasing Acatha, Buffy dusts Angel, Spike dusts Dru saving Buffy

So this is a story I read a long time ago, but really loved.

Basically, before he could release Acatha, Buffy dusted Angelus. Driven (more) insane by her sire's death, Drusilla attacks Buffy but before she can kill her, Spike saves Buffy by dusting her.

Soon after, to comfort each other, they sleep together in the mansion and later she stands up for him against the Scoobys when they catch them together.

I also remember not long after, Giles and the Scoobies are trying to push Acatha out of the mansion but is having a hard time

Hi,
Is it:

Unexpected by Passion4Spike
Summary: This story picks up at the end of Season 2, The Becoming 2. Buffy has made a deal with Spike to defeat Angelus. It goes off canon when Buffy leaves Giles' flat after talking with Whistler about how to defeat Angelus. Will Spike still help Buffy defeat Angelus when things go pear shaped? And what then? Where will their lives go from there?

http://dark-solace.org/elysian/viewstory.php?sid=2991&textsize=0&chapter=1

girlie_mel
It also sounds a little like Blood of my blood mixed in this?
http://spikeluver.com/SpuffyRealm/viewstory.php?sid=22950&textsize=0&chapter=1

It's Unexpected, but I'll be sure to read Blood of my Blood too!

Thanks so much!