What if Buffy had been hit by Toth's ray?

While Slayer Buffy is all Rambo like running around day and night slaying everything that moves, Human Buffy is on the run.

She takes up sanctuary inside Spike's crypt where he helps to protect her. How long till they fall in love ....and how is up too you.

But then there's the worry between the two that when Buffy's halfs are put back together she won't feel the same.