I am now going to ask you a favor which sounds quite crazy, and which I should regard as such, were I the one to receive the letter. It is also the very greatest test that even the kindest person could be put to. Well, this is it:

Write to me only once a week, so that your letter arrives on Sunday — for I cannot endure your daily letters, I am incapable of enduring them. For instance, I answer one of your letters, then lie in bed in apparent calm, but my heart beats through my entire body and is conscious only of you. I belong to you; there is really no other way of expressing it, and that is not strong enough. But for this very reason I don’t want to know what you are wearing; it confuses me so much that I cannot deal with life; and that’s why I don’t want to know that you are fond of me.