Corona SDK: TableView index not updating - indexing

Question

I've got a problem with Corona SDK and the tableview, but allow me to show the code first:
function functions.onRowTouch( event )
print("ONROWTOUCH EXECUTING")
if event.phase == "tap" or event.phase == "press" then
print("EVENT.TARGET.INDEX: " .. event.target.index)
editItemNum = event.target.index
print("editnum: " .. editItemNum)
print("ITEM tapped")
if saveData.names[event.target.index] ~= nil then
function functions.pressRow(event)
print("ROW NUM: " .. event.target.index)
print("EDITNUM = " .. editItemNum)
functions.pressItem()
return true
end
event.target:addEventListener("tap", functions.pressRow)
end
elseif event.phase == "swipeLeft" then
print("SWIPING LEFT")
tableView:deleteRows({event.target.index}, {slideLeftTransitionTime=450})
table.remove(saveData.names, editItemNum)
table.remove(saveData.dates, editItemNum)
table.remove(saveData.amounts, editItemNum)
loadsave.saveTable(saveData, "payMeBackTable.json")
print("ROW DELETED")
end
end
I'm sorry for the indentation, stackoverflow just kept changing it...
But here is my question:
in the event.phase == "tap", I'm assigning editItemNum to event.target.index. After that I delete a row that is tapped. This works great for the first time. I'm using this line of code to achieve that btw:
tableView:deleteRows({editItemNum}, {slideLeftTransitionTime=400} )
So the delete function knows what to delete because "editItemNum" gets the value of the row index.
But once I deleted the row, the index numbers of the rows are not adapting. So for example I've got 3 objects in my table: 1,2,3. Now I delete the middle one, so I should get: 1,2. But instead when I touch the second row, the index is still 3. So visually that'd look like: 1,3.
It just makes no sense in my eyes and I really don't see anything wrong with my code. I did find a post on the Corona SDK forums with a bug report for this issue, but that was 2 years ago and was resolved...
Any help? :)
Kind regards,
Bram