Statistics for occurrence #1 of “Darling” in chapter 22, page 128 of Laura E. Richards, Maud Howe, Florence Howe Hall, Julia Ward Howe, 1819-1910, in two volumes, with portraits and other illustrations: volume 1:
...anting to see her oftener.
She said pathetically, Can't you talk of me?
I said, We do, darling.
Not very often, I think was her reply.
Then she seemed to come very near me, and I said to her, Darling , do they let you come here as often as you want to?
She said, Not quite.
I asked
...