I'm amazed at Jane's sweetness and goodness. (I HAVE known a person who was so consistently good -- my Mom was!) I daresay that even had Jane been told of Darcy's role in separating Bingley from her, she would still have found some reason to account for it! These quotes show Jane's goodness at work:

"... poor Jane! who would willingly have gone through the world without believing that so much wickedness existed in the whole race of mankind as was here collected in one individual [Wickham]. Nor was Darcy's vindication ... capable of consoling her for such discovery. Most earnestly did she labour to prove the probability of error, and seek to clear one, without involving the other."

"I do not know when I have been more shocked," said she. "Wickham so very bad! It is almost past belief. And poor Mr. Darcy! Dear Lizzy, only consider what he must have suffered. Such a disappointment! and with the knowledge of your ill opinion too! and having to relate such a thing of his sister! It is really too distressing. I am sure you must feel it so."

"Poor Wickham; there is such an expression of goodness in his countenance! such an openness and gentleness in his manner!" ... " He is now, perhaps, sorry for what he has done, and anxious to re-establish a character. We must not make him desperate."