Sei was awakened in the middle of the night by the feeling of someone sneaking into her bed. Thinking it was Suyeon, she rolled over, wrapped her arms around her, said "Good night, baby," and fell asleep. But her eyes flew open when she heard the person say "Oops! Wrong bed!"   "Lucy? What the hell?"   "I thought I was getting into Lua's bed. She said I could climb in bed with her whenever I have a nightmare."   Lucy looked around. "Oh. I guess my eyes weren't adjusted to the dark. I see now." She started to climb out of the bed, but Sei stopped her.   "Wait," Sei said, holding on to Lucy's arm. "Before you go, I want to talk to you for a second."   Lucy rolled over and stared into Sei's eyes. "Sure. What's up? Something wrong?"   "I just. . . I was . . . " Sei was obviously having trouble finding words. Lucy waited, resisting her usual impulse to jump in and help when Sei had this problem. "I . . . How are you doing?"   "I told you. I just had a nightmare. I was being chased, and I'd try to run but my legs wouldn't work right-"   "No, not right this second," Sei interrupted before Lucy could get fully into recounting her dream. "I meant, how are you doing for the last couple of days, since we . . . that is, since I . . . you know . . ."   "Since you dumped me?" Lucy asked. Sei could only nod. Lucy looked up at the ceiling for a moment, as if composing her thoughts, then said "I'm doing okay. I've been doing some reading whenever I get spare time. Speaking of which, can I ask you a question? Something I read doesn't sound right, and I wanted to get an unnie's perspective."   Alarm bells started going off in Sei's head - probably because she was the youngest member, Lucy had always been opposed to the age-based stratification of Korean life. Sei had lost track of how many times she's had to listen to Lucy rant about how just because someone was older, it didn't mean they were wiser or smarter. And now all of a sudden Lucy was suddenly seeking an unnie's advice? Something seemed off, but the only thing Sei could think to do was to play along until she saw where Lucy was going with this. "Sure," she said, "you can always ask me anything."   "Well," Lucy began, "I was reading something yesterday, and there was a little section toward the end where it talked about the possibility of dating more than one person at the same time, and everyone knowing about it and being cool with it. The write