"Should husbands and wives tally up at the end of the day and say, well wait a minuet, I love her if she's done enough for me today, and she loves me if I've properly performed my functions?"
Almost any interview with Rand involves this question in some form. The question concerns a confusion that the only kind of selfishness is a utilitarian kind. That selfish people are only ever trying to maximize their own utility--that nothing is valuable to the selfish person for its own sake. Now, of course it's an ignorant question to ask of Rand. Rand is quite clearly a virtue ethicists, and quick to praise beauty, rationality, love, human life, and so on as having some sort of intrinsic value. But the mistake doesn't happen because people read Rand and get confused, it happens precisely because the people that ask it don't read Rand, hear 'the virtue of selfishness' and jump to conclusions about what selfishness entails.
Selfishness in common-day English has two distinct meanings.
To act with disregard for others
To act with regard for yourselfOn the surface of it, it might appear as if these were two sides of the same coin, but in action they lead to two entirely different ways of life. To act with disregard for others is to preclude yourself from any concern for other people, and because acting with concern for other people can be both profitable and rewarding for its own sake, would consequently lead to less value for the self overall. On the other hand, to act with regards for yourself, only entails that your actions are in-line with your intrinsic and extrinsic values, so will include lots of concern for other people where appropriate. Particularly in the example of loving someone.