Panel 1: Now that they've moved their parents into their new home, Phil and Elly tell them to enjoy their first night in their new home.
Panel 2: Jim reminds us that yes, the two of them have gone from living in a big old house to a tiny place with just the bare essentials.
Panel 3: They agree that it's a strange feeling.
Panel 4: Marian is somewhere between confused and bemused when Jim says that he feels like a newlywed again.
Summary: This is more appropriate coming from a man who took early retirement in his early fifties and had twenty years of this sort of life. In Jim's case, you wish Dorothy Zbornak would tell him that these aren't the best years of his life but the LAST years of his life.