Right after Harry’s visit, Hermione and Ron had their worst row ever. That same day, Hermione went to the Magical Liaisons and Contracts Department to start the process of dissolving her marriage. He had done the unforgivable by going to Harry and causing what she already knew would be an irreparable rift between them. Not to mention the chasm that was officially now between her and Ron. She knew she could not stay with Ron anymore — all their trust was completely broken down, and she suspected that the deep friendship between herself and Harry had also been damaged permanently. 