How to show Comments (created with entity form) only to the Admin user and logged in?
You might try updating PERMISSIONS.  By default, EntityForms only allows administrator to view, edit, or delete.  If you want a user to be able to view their own EntityForm submissions, you have to update the permission for this.  You can find it under PEOPLE->PERMISSIONS->EntityForms->View own entityform submissions-> [check] AUTHENTICATED USER.

Good Luck!

Chrisjan