Before I broke up with one of my exes. There was a time she said some things while we were on phone. One of what She said was "what will I do if she cheated?" and I told her my response, and it was not smooth. This lady got unhappy ooh!! Can I manage cheating? no now. But the way she asked that question, I don't know if she did it already, because she acted somehow "sorrowful" or unhappy. Though I broke up with her later.