Uh, I think you are possibly mistaking TARP (which did need to be paid back) for Quantitative Easing (which did not). QE wasn't a loan, and the assets purchased

Uh, I think you are possibly mistaking TARP (which did need to be paid back) for Quantitative Easing (which did not). QE wasn't a loan, and the assets purchased by the Fed only recently started being returned, and there is no requirement to repurchase the assets by the same entity they were purchased from.