Sirius and Remus were saddened and disgusted, what their godson had done. Especially for Sirius. Didn’t Harry understand that she was dark and evil and the reason behind his disownment? No, his godson betrayed him and his friends like Pettigrew had done at the end of the war. Only that it was even more painful, because it was his godson, who should have loved him and not threw him away like garbage.