Hide and Seek by Fyodor Sologub

Everything in Lelechka's nursery was bright, pretty, and cheerful. Lelechka's sweet voice charmed her mother. Lelechka was a delightful child. There was no other such child, there never had been, and there never would be. Lelechka's mother, Serafima Alexandrovna, was sure of that. Lelechka's eyes were dark and large, her cheeks were rosy, her lips were made for kisses and for laughter. But it was not these charms in Lelechka that gave her mother the keenest joy. Lelechka was her mother's only child. That was why every movement of Lelechka's bewitched her mother. It was great bliss to hold Lelechka on her knees and to fondle her; to feel the little girl in her arms -- a thing as lively and as bright as a little bird.

To tell the truth, Serafima Alexandrovna felt happy only in the nursery. She felt cold with her husband.