Steph Curry was pushing Dellavedova around all night and I mean he literally was pushing Delly all night.

At the end of the first quarter, Delly bumped David Lee and then got pushed by a pissed off, yes a pissed off, looking Steph Curry.  The TV producer, realizing it's not a good look for Curry and the NBA, quickly had a graphic transition pop up over the possible altercation before they went to a commercial.

Unlike that push, Curry's extended arm push on Delly in the 4th quarter was a little more obvious since Curry had the ball in his hand when he made the push before passing to Klay Thompson for the layup (50 second mark of the following video). The refs didn't care to call it but even if they did, it wouldn't have stopped the Warriors from pushing the series to at least a game 6.