Ali is determined to find out what Nathan is hiding. O.B. is struggling to come up with ideas for Valentines Inc. and ropes Mel into lending a hand. Lisa is frustrated that Jake is going away to be with Becca and insists that she has to tell him how she feels before he leaves. Frankie is stunned when Johnno says he wants to meet her. Sam and Russ take a nervous Joe to The Dog in the Pond, watched by Dannii.