u/Standard_Concert1460

I'm very new to lenormand and have been a tarot reader mostly. This is for a love reading where the deck was asked how this relationship can be converted into something fulfilling and long-term?

I understand that the book and key represent that there are things that need to be studied closely and uncovered to unlock that sort of a relationship but I'm unsure about the meaning of the moon? Please help and guide me on how you'd interpret it