Never easy to play against a girlfriend. Even less in the quarterfinals of a Grand Slam tournament. At Roland Garros, the opportunity is too good for Iva Majoli, 9th in the world, and Ruxandra Dragomir, 20th, to reach a first semifinal in major. The match is tough. The sun is hot. The exchanges are endless. Dragomir, 24, countered Majoli's punch and fire with her game science, spin and drop shots. Trailing 6-3, 5-3, she took her friend into a very unfriendly third set. And when Majoli fell to her death on her sixth match point with a winning forehand volley, her friend staggered to the net, crossed it with difficulty and came to lie down beside her.