Growing Affection

"The especial glory of Affection is that it can unite those who most emphatically, even comically, are not; people who, if they had not found themselves put down by fate in the same household or community, would have had nothing to do with each other. If Affection grows out of this--of course it often does not--their eyes begin to open. Growing fond of "old so-and-so," at first simply because he happens to be there, I presently begin to see that there is "something in him" after all. The moment when one first says, really meaning it, that though he is not "my sort of man" he is a very good man "in his own way" is one of liberation. It does not feel like that; we may feel only tolerant and indulgent. But really we have crossed a frontier. That "in his own way" means that we are getting beyond our own idiosyncrasies, that we are learning to appreciate goodness or intelligence in themselves, not merely goodness or intelligence flavoured and served to suit our own palate."

C.S. Lewis, The Four Loves

I firmly believe you can grow to like anyone. At least a little bit. Maybe not everyone would prove to be a healthy relationship in your life--but there is a bit of fondness to be found in every person, if you dig deep enough. I kind of love that.
Also, don't forget--if you're fond of someone, even a little bit, be sure to tell them.