"I would be happy spending every night with you, though," Elizabeth says, pushing her nose into his neck and clinging to his shirt. She loved him, there was no question that she loved him. It was all entirely a question of Booker living alone. Booker living alone with the Luteces, even.
"I'm thinking of Booker, entirely. He's been alone with his guilt over his past for so long. I don't want to abandon him..."
[Mission 14 - Post-IC Discussion]
"I'm thinking of Booker, entirely. He's been alone with his guilt over his past for so long. I don't want to abandon him..."