It was hard to hear, but he thinks it was harder on her to say it, honestly. He's too removed to feel it as keenly as he should, too distracted by her, since she's the one he knows. That's part of why he needs time to mull it over, to make it make sense.

"You'll be alright."

That's not forgiveness, exactly, but he's pretty sure it's not a lie. If nothing else he's got boundless faith that she'll make it through, one way or another; she's strong, always has been, stronger than she knows. And he wants to be there for her, too, part of what she comes back to; he's just not sure yet how to manage.