Guru
1995 -
Why is betraying her trust wrong? If she doesn't find out about it, then she can't know you've betrayed her trust and nothing is wrong to her. If you are cheating and she doesn't find out, why would it be bad? You aren't causing her any anguish or suffering.Only scumbags use the excuse of "Well, if they don't find out then it isn't bad".
If the only thing keeping you faithful is the fact that your girlfriend would find out if you acted on it, you a scummy person.
Or is it the potential to cause suffering and emotional pain that makes it immoral?