Thinking out loud, which scenarios does she end up getting taken to final 2. Red means I don't think she has a chance:
Johnny: Vanessa, Steve
Johnny: Vanessa, Austin
Johnny: Vanessa, Liz
Steve: Vanessa, Johnny
Steve: Vanessa, Austin
Steve: Vanessa, Liz
Austin: Vanessa, Johnny
Austin: Vanessa, Steve
Austin: Vanessa, Liz
Liz: Vanessa, Johnny
Liz: Vanessa, Steve
Liz: Vanessa, Austin
FTR, if I were any of them, I would not take her to final 2.