Pauley is grabbing at Siobhan, demanding you know how she knew where he went. She thinks she can hear Leighton inside, calling for his daddy, but that might be the pills.
She's suddenly very aware that she's standing on a rooftop, in the dark, with a man who Moynihan said wouldn't hesitate to kill her.
Pauley is still shouting, his teeth are bared and he looks like he wants to kill her. She's only seen that look once before, on Git's face before he punched her in the head.
So she puts her hands on Pauley's chest, and pushes hard.