Riley didn't seem ready to leave yet, but luckily for Dale, Kelly appeared just then, as if she'd fallen from heaven.

Kelly: Is everything okay here, honey?

Dale: Yeah, everything's fine, Riley just came down to say goodbye, she's already leaving.

Kelly: Well, it's about time!

Riley: (Sighs) Okay. Goodbye, Daley. Good luck with your relationship, enjoy it as much as you can cause I don't think it's going to last... Oh, and give my best to Terry the Terrible, maybe he can give you a heads up on what I was going to tell you.

Dale and Kelly went back upstairs together, the last of the guests is leaving, Riley was left alone downstairs, brooding over her defeat. The opportunity to implement a last-minute plan failed, there's nothing left to do, the trimester has now ended.