The two layers seem to say, superimposed on each other:

Manny doubles back to the car, reaches into Olivia's pile of flowers and finds his gun, the one he'd left there. Something really does go down like in Heat, and he's dead. All right then… I don't hate it. No matter. Ouch!

Manny doubles back to the car, reaches into Olivia's pile of flowers and finds his gun, the… Maybe the really cool thing that happens is you see his shadow traveling through time, and that's how you know he's coming back. And although I'm pretty cool with it… Great ending, ta da.