want of forbearance

References in classic literature ?
It so happened, however, that after I left you I turned back - drawn by pure depth of sympathy and ardour of affection - not daring to intrude my presence openly upon you, but unable to resist the temptation of catching one glimpse through the window, just to see how you were: for I had left you apparently in great affliction, and I partly blamed my own want of forbearance and discretion as the cause of it.