If for example the guy has actually cheated and you have decided to give him another chance, you should forgive and progress straight away. Cannot obsess about how great she was a student in bed or if perhaps she did this or that to him, plus don’t ask him any such concerns. The responses will harm both you and induce more insecurity.
Do ask him precisely why the guy performed what the guy did and decide with each other ways to end up being stronger for any experience.