What is the meaning of "PAD INTO and IRREVOCABLY"?

I’m too hurt to respond, although I can tell Jeff instantly regrets saying it. His eyes go dead for a second and his mouth twists in distress.
“Quinn, I didn’t mean that.”
“I know.” I slide out of bed, still naked, feeling exposed and vulnerable by that fact. I grab the first article of clothing I can get my hands on—Jeff’s threadbare terry cloth robe—and slip it on. “It’s fine.”
“It’s not fine,” Jeff says. “I’m an ***.”
“Get some sleep,” I tell him. “Tomorrow’s important.”
I pad into the living room, suddenly and irrevocably awake. My phone sits atop the coffee table, still turned off. I switch it on, the screen glowing ice-blue in the darkness. I have twenty-three missed calls, eighteen texts, and more than three dozen emails. Virtually all of them are from reporters