Read it through once

“In such cases as this, it is, I believe, the established mode to express a sense of obligation for the sentiments avowed, however unequally they may be returned. It is natural that obligation should be felt, and if I could _feel_ gratitude, I would now thank you. But I cannot--I have never desired your good opinion, and you have certainly bestowed it most unwillingly. I am sorry to have occasioned pain to anyone. It has been most unconsciously done, however, and I hope will be of short duration. The feelings which you tell me have long prevented the acknowledgment of your regard can have little difficulty in overcoming it after this explanation.”