Why does bursting send emails to other customers when bursting contact is NULL

We recently came across an issue with XML Publisher bursting in EBS when there are records in the xml file without an email address bursting just keeps looking until it finds the next email address and sends the previous records to whatever email that is. I am attaching our bursting file and an example xml output. If any expert can review the bursting file and let us know if we should change anything so this doesn't happen again we would appreciate the assistance.

You will see in the attached test.txt(had to change from .xml to upload)

{Files removed by admin}