Based on the information given, it is likely that the Nuremberg Laws would be applied to Ava and Beyle in a way that would put both of them in danger. The Nuremberg Laws were a set of anti-Semitic laws enacted by the Nazi regime in Germany, which aimed to strip Jews of their rights and segregate them from the rest of society. Even if Beyle had converted to Catholicism and Ava was not Jewish, the fact that they were married would likely be seen as a violation of the Nuremberg Laws, which prohibited marriages between Jews and non-Jews. As a result, Ava would be at risk of being targeted by the Nazis, just like Beyle. Therefore, the most likely outcome is that Ava and Beyle would both be in danger and at risk of persecution by the Nazis.