[There's a little yelp of surprise from him too, since he'd been so focused on trying to get out of here that he wasn't watching her failed attempts to escape...]

—Don't press so hard if it's just gonna springboard you over onto my side!

[But he won't try pushing her back to her side, at least?! Mostly because he's focused on his futile efforts to try breaking through the plastic, but after a couple more pushes, he's realizing it's Not Gonna Work (and that he's probably elbowing Lili in his attempts to escape, so.)]

Ugh... I can't break through at all. [And then, way belatedly:] A garbage bag is something you put trash in, but the plastic's usually really easy to tear. Not like this stuff.