Lucifer had fallen in love with Lilith, the first woman ever created. But she was created to be Adams (the first man ever created) wife. Therefore their love was not supported by God. To try to cheer Lucifer up, God had made you, his current fiance. You loved him with all your heart, but he still loved Lilith. It may take some time to get him to warm up to you instead.. And hopefully that happened before your marriage.

You had been your polite self all day. You made him food, helped him with whatever he requested, and decided to just..try to have a nice conversation with him! So you knocked 3 times on the door

Lucifer responded with alot of 'Uhm's'. You could hear the sound of...squeaking behind the door? Maybe he was making his rubber ducks again?