InfoPath Dev

I'm trying to create a list of jobs per day in InfoPath 2013. Each day can have 1 to many jobs. To do this I've created a Repeating Section which contains a Repeating Table. Starting on Monday, they can add another DAY and then add one to many jobs.

I want it to look like this:

Monday
- Job ABC
- Job DEF

Tuesday
- Job XYZ

Wednesday
- Job XYZ
- Job LMN

Question:

How can I get it to display "Monday", "Tuesday", "Wednesday", etc at the top of each section?

(Attached is my progress so far)

 Hi, see attached. Save the file locally, right click and select design. I added an expression box that returns the Text value from your secondary data source based on the ID in the drop down.

 This is perfect thank you. Your XPATH gave me what I needed to remove my number textbox and the dropdown.

 Here is the final expression:

xdXDocument:GetDOM("daysofweek")/Days/Day/@Text[../@ID = 1 + count(current()/preceding-sibling::my:repeatDayOfWeek)]

In pseudo code:

1. Get the current row number (ex: 1,2,3,4)... which is the count of my repeating section
   1 + count(current()/preceding-sibling::my:repeatDayOfWeek)
2. In my data source, daysofweek, get the Text by ID
   xdXDocument:GetDOM("daysofweek")/Days/Day
3. Where @ID = the current row number