"Honestly, when I thought I didn't have the capacity for love, it... suddenly seemed like a practical thing," Lucifer said. "Because at least I was already giving the two of you all I could. If there wasn't any difference in my feelings between you and her, then... sticking with the people I had already made a commitment to seemed fair. Then, in the Silver City, I realized I could love, and..."

He brought up his wine and took a sip. He looked thoughtful.

Or like he was getting his thoughts in order.