November 13 was for Stavros Niarchos the day when he got struck by inspiration and realized that he "should have been home that day studying".
"Instead I am here paying $100,000 worth of bills", said Stavros and dumped Paris.

So, after a month of true love, Paris Hilton and Stavros Niarchos have split up.
What led to their fighting was a party celebrating Kelly Osbourne's 21 anniversaries that ended in disaster.

The birthday party was held at the Las Vegas Hard Rock Hotel. The participants lost control and started hurling furniture around the hotel. There was also a pillow fight involved. Somehow, something struck the sprinkling system which resulted in water cascading through the rooms. The hotel was subsequently evacuated.

One of the witnesses said: "The carpet was coated with pillow feathers. Every lamp was broken.A maid told us they ruined every pillow in the room."

The 'accident' made Paris Hilton angry, as she was overheard saying to her boy-friend: "I don't want Hard Rock to think I bring in people who do this."

Stavros also claimed that everything happened only because of her bad influence on him. He was left with a $100,000 damages bill.

A friend of Stavros told Star magazine that "they broke up November 13. Stavros told Paris that things are out of control and he's through with the drama. He said to her, 'I need time to reflect. I should have been home today studying, instead I am here paying $100,000 worth of bills.'"