If I were Frank, I would say:
"Shane, I know I am going home tonight. Good luck on your game, but I have a secret to tell you. Mike Boogie has a clandestine relationship with Danielle. I saw them sleeping together last night. Today morning, I found a used condom in their room. When we had an afternoon group meeting with Danielle, Boogie knew I will be voted out tonight. Since I am his number one pick and he doesn't trust that kid Ian, and the transvestite, Jen, he decided to trade Ian for Joe. I know Joe is playing both sides. He has been working with Britney and Boogie. He called a truce with Dan and Danielle. He is probably going to be the final 4 with Danielle, Ashley and you. Maybe this is a good timing to get rid of him; as soon as possible. Ian and Jen want to please the whole house, so they will switch their votes and vote against me tonight. You shouldn't trust Boogie. Danielle is Boogie's showmance and they are after you."
finishes the talk and walks out of the door.
Then say the same thing to Ashely. Ask her to be join Chill Town.