When mr. bingley comes to pay a visit at longbourn, who else is with him? how does darcy act while visiting? how does elizabeth respond to him? why is she disappointed?

Mr. Bingley visits the Bennet family's house with his friend, Fitzwilliam Darcy.

Darcy remains distant and thoughtful, as he was at the beginning of the story. Although Elizabeth wants to talk with him, only a few formal comments are exchanged and he doesn't even look at her.

Elizabeth was surprised by his visit, and a little excited that he will continue to love her now that her feelings had changed. However, as there is no conversation, she feels confused by his attitude and disappointed to believe that he would remain interested.

interact. i am not 100% sure with this, but you can communicate without speaking, so i think interacting is more precise answer.