The Horror Expert by Frank Belknap Long

He had entered the hospital room so quietly that Lynn Prentiss was unaware that she was not alone -- the nurse had left fifteen minutes before -- until he was standing by the bed with a sheaf of drawings under arm and the strangest, oddest assortment of yellow flowers in the other she had ever seen.

"You'll have to turn on the light to look at these, I guess," he said and she didn't know at first whether he was referring to the flowers or the drawings. But when she switched on the light directly over the bed she saw that it was one of the drawings which he was extending toward her. The flowers he was holding a little awkwardly, not even venturing to offer them to her, as if he wasn't quite sure that she would approve of his taste in flowers or would not think him over-presumptuous.