The Otome Game’s Bad Ending [send help]

The game's heroine had a limited time to live. Meanwhile, I played the role of the villainous friend that vies for the male leads' attention before being eliminated by the player. However, after that kid died, I made the decison on my own to exit from this story. But, what do I do? The reactions of those around me are a bit strange. "I came to the marquis’s estate because Ophelia needed a friend around her age. An...