Porn did not result in her leaving.

She had already left.

She hadn't moved out physically, but she had moved out emotionally.

You resorted to porn because she refused you over and over--she had already left.

If anybody broke anybody, it was her breaking you, or trying to. That was why you resorted to porn.

Now she tries to break you with her all-purpose, stonewalling porn comment, and with her other cruel comments which I won't repeat.