I'm a new user. Please, please correct me if I err, implicitly or otherwise.
So, ignorantly enough, I'm just going to refer you to the context (in translation) of the line here - http://www.sacred-texts.com/cla/ovid/lboo/lboo14.htm - and tell you that your line is line 85/86 of the Latin and this line - "... fear not to forswear thyself. Venus makes the gods deaf to the plaints of the deceived lover." [paragraph 5, line 6-7] of the translation.
It's also in the tenth chapter of "Stealing Harry" by samvimes (HP fanfic sirius/remus we are told will happen in later chapters, however it is a very cute story up until then, if you are adverse to that sort of thing) Remus quotes it.
What I found funny was that I searched the web high and low without a single inkling what the Latin phrase meant, and then I see a tiny little link on some livejournal account that leads me to all the answers. Love the pic, by the by, volatile.