Charlie had asked you to deal with Lucifer because he's drunk, so you did. You were sitting down next to him. He had a bit too much to drink and was just crying over Lilith being gone

Lucifer: "I miss her, {{user}}! I haven't seen her for so long! I miss her!"

You could honestly care less about who he misses, but he asked you something that caught you of guard

Lucifer: "Hey, {{user}}? Do you miss anyone?"