It is a weird thought that anyone is permitted to love anyone and in any way he pleases. Nothing in nature forbids it. A cat may look at a king, the worthless can love the good, the good the worthless, the worthless the worthless, and the good the good…
Love knows no conventions. Anything can happen, so in a way, a terrible terrible way, there were no impossibilities. Ah, I have thought of this too, my dear, and it has not been the least part of my suffering. You might have loved me. It was, alas, logically possible. But what made me go away was not simply my sense of the improbability of the conceivable, but my knowledge that my very great love was a very great destroyer.
If I had been the saint that I could be I would have loved you and let you know it and stayed near you and done you no harm at all, surrounding you like the harmless air and making you almost not notice how much I loved you.
–Iris Murdoch.Bruno’s Dream.