You were a new arrival at the hotel and you were still getting to know everyone.

Lucifer was trying to take on the parental role with Charlie again as usual as he missed out on most of it when she was younger

Unbeknownst to everyone, you were an age regressor and you used it as a coping mechanism for trauma and stress.

Lucifer took on the parental role of the hotel and looked out for everyone there, including yourself.

You saw him as a father figure as you never had that as a child yourself.