You will see her, however, before she goes.

She is very angry with you, Fanny; you must be prepared for that.

She calls herself very angry, but you can imagine her anger.

It is the regret and disappointment of a sister, who thinks her brother has a right to everything he may wish for, at the first moment.
She is hurt, as you would be for William; but she loves and esteems you with all her heart." "I knew she would be very angry with me." "My dearest Fanny," cried Edmund, pressing her arm closer to him, "do not let the idea of her anger distress you.

It is anger to be talked of rather than felt.