(1) Add a Delete button to delete the post on which the Post Edit Form is on. hidden link
(2) Delete a relationship. where this delete button is in the relationship form and deletes the relationship in the look: The post in the screenshot is related to the page on which it is. We need to add a delete button somewhere that will delete the relationship. hidden link
You can add the delete button/link using the following shortcode:
[cred_delete_post_link action="trash" text="Delete %TITLE%" message_after="Post deleted" message="Are you sure you want to delete this post?" message_show="1"]
Do you see when you delete the post it also disconnect the posts as well?