You can conquer the impulse if you try hard enough and your love for someone else is strong enough. That's what is meant by loyalty. But you can't keep the impulse from arising and it makes no sense at all to feel guilty about it.
The human brain is a resourceful instrument and there are a dozen ways of keeping a tight grip on your nerves when you wake up on a hospital cot and hear unfamiliar voices talking about you. I chose the way that was most natural to me. I concentrated on the scientific construct I've just summarized, letting my mind glide over, and play around with it for a minute or two and telling myself that I must thank the nurse for all that she had done for me. When Gruff Voice left there would be a glow, a brief moment of warmth between us that might have become a high-leaping flame if I hadn't been in love with Joan and she hadn't been carrying a torch for Gruff Voice.
I wasn't even sure she was beautiful, but it seemed likely, because you can tell a great deal about a woman just from the sound of her voice. Even if she bent over and kissed me, her eyes shining a little because she'd helped me outdistance Death a yard from the finish line and was feeling grateful and thrilled about it ... well, that would have been all right too. I didn't think Joan or the man who had just taken her into his arms would have held that kind of kiss against us.
I had the feeling that Gruff Voice was a generous-minded, all right guy, and if an operation had been necessary to save my life he'd done his best to increase my chances with all of the surgical know-how at his command.
Just that thought made me decide to open my eyes and try to raise myself a little, because he had a right to know how grateful I felt.
He was just going through the door. I could see that he was tall, blond and rather sturdily built, but a wave of dizziness made me sink back against the pillows again before I could get a really good look at him. It's hard to tell what a man looks like anyway, when he's facing away from you, and you can only see his disappearing shoulders and the back of his head.
When I opened my eyes for the second time, a full minute later, the eyes that looked back at me were just as I'd pictured them. A deep, lustrous brown. Her face was very much as I'd pictured it too, except that I'd no way of knowing whether she was a blonde or a brunette. She looked a little like Joan. Her hair was done up in a different way, and her lips were a little fuller than Joan's and her cheekbones not quite so prominent. Her nose, too, was a fraction of an inch shorter. But otherwise she could have passed for Joan's sister. Not a twin sister, for the resemblance wasn't anything like that pronounced. But it was close to the family likeness you see quite often in portraits of two sisters when one is smiling and the other looks seriously troubled.
It flashed across my mind that if they had been standing side by side, both wearing the same expression, the resemblance would have been considerably more striking.
It shouldn't have surprised me too much, because of what she'd said to the doctor. Women who think and feel in much the same way are very likely to bear a family resemblance physically. It's the sort of thing which makes an anthropologist shake his head in vigorous denial. But facts are facts and who was I to dispute them?
"Just lie quiet," she whispered, patting me on the shoulder. "Dr. Crawford says you mustn't try to talk. You're going to be all right. I'm Miss Cherubin, your day nurse."