This isn't going to make much sense unless you start at the beginning - Giraffes - Act One, Scene One.
(Kirsty waits, filled with dread, suitcase by her side. Enter Anna and Simon, seemingly more composed. Anna sees Kirsty, breaks off, attracts her attention and they embrace.)
ANNA. Simon – Kirsty. Kirsty – Simon.
(Kirsty moves to peck Simon’s cheek. Simon moves to take Kirsty’s hand.)
Next - Giraffes - Act Two, Scene One.