Edward Yang is not the romantic type. In fact, The Terrorizers shows us romance as a crime. To use your partner for your own gain and thus robbing them of themselves. A man consumed by his identity as a cog in the capitalist machine has no chance of finding himself after he's used, been used and consequently drenched without him even knowing it. He no longer exists.
This movie is so philosophically sound, and its beauty lies in its loyalty to its message. The theme of terrorizing romance overlaps in every single frame of the movie. A wife leaving her oblivious, ignorant husband is the same as a hooker robbing her customer.
I think what we learn from this movie is that for a relationship not to be a crime, a collective direction is needed. The young girl knows this. Don't steal things from each other, steal together, from others.