Author's Note: Another 100-word tidbit on how the whole Angelus situation might've been avoided by dint of Xander doing his usual 'let's unknowingly screw up the millennia-old prophecy' situation just because he wanted something different for lunch at the school library with his friends.
In full Peeping-Tom mode, The Powers That Be watched from above Buffy and Angel making love.
Excellent! That mystical coupling would bring back Angelus and eventually lead to the Powers' keeping the balance of good and evil fixed forever—
BBBBRRRRRPPPP!
At her bedroom, Angel abruptly looked revolted in mid-stroke.
Pulling out, he said in a quite strangled voice, "Sorry, we'll do this again later, Buffy."
Snatching up his clothes, the naked vampire promptly fled, eyes watering.
Lying there, a very embarrassed/affronted Buffy screamed at the ceiling, "Dammit, Xander, you had to pick today to share your burrito takeout with me!"