Chase would NOT be paying back the $19,000 if it involved material expenditures.
RSBM
It doesn't really matter because the defense has not made that argument. They say Chase was never paid the 19K
In reality, Chase acknowledges he agreed to repay Joey all 19K
If the defence wants to say it is 19K less expenses, they'd have to acknowledge that Chase is holding the 19K and Chase would have to testify.
This is why we shouldn't start offering exculpatory justifications for the defence when the defence itself won't plead to it