InfoPath Dev

I have a multi-selection box and a text box that reads all values that are checked in the multi-selection box. The problem is, when a box is checked and placed in the text box, it can not be removed from the text box by unchecking. Is there a rule to create that would add/remove a value if it was checked then unchecked?

I have a repeating table that has 1 column listed w/ emails from a multi-selection box that pulls the data from a secondary source. There is a button in another column that repeats as well. This button will email any of the email address selected. My problem is, that when the button is pressed it is adding the other emails as well. I'm ...