solution

Success! I solved my problem without lifting a finger! Devon managed to kick her self out of the running so now I can concentrate more on Lisa w/o thinkin of Devon. What happened was: as she called me all drunk and horny on Friday nite she broke up with her boyfreind that very nite. Subsequently, she was all messed up the next day and that night as well. By the time I swung by her place to pick her up she already looked depressed. As the night progressed, she got drunker and sadder, and by the end of the night she barely payed any attention to any of us, and stood by her self in the middle of the club.
I was super happy with the outcome, so me and Lisa smoked a joint and danced, while grinning like idiots. Now that she broke up with her boyfriend I can give Devon some "space" and that way I dont have to come in contact with her for a long time.
Now I must plot my strategy as to how to get to Lisa. Hmmm...I have some serious pondering to do.