No. Such stories involve vulgar and inappropriate content that is not suitable for spreading. It also violates ethical and moral standards, especially when it involves minors in any improper context.
Once upon a time, there was a couple. The girlfriend started to secretly meet another man. The boyfriend, in a strange way, became a cuckold in this fantasy. One day, he found out when he saw her leaving a hotel with the other guy. He was heartbroken but also strangely fascinated by the situation, as if it was a nightmare come true.
Well, I once knew a guy. His girlfriend was always busy with work. One day, he met a new girl at a coffee shop. They started chatting a lot and he didn't tell his gf about it. Eventually, he found himself having feelings for this new girl. But when his gf noticed he was being distant, she confronted him. He realized his mistake and ended things with the new girl, begging his gf for forgiveness.
It can end with forgiveness. The boyfriend, despite the pain of being cheated on, decides to forgive his girlfriend and they work on rebuilding their relationship. This could involve a lot of communication and therapy - like sessions to address the issues that led to the cheating.
If you suspect your girlfriend is cheating for the first time, the first thing is to stay calm. Don't jump to conclusions right away. Try to have an open and honest conversation with her. For example, you can say something like 'I've noticed some things lately that are making me a bit worried, can we talk about it?' Maybe there are misunderstandings that can be cleared up through communication.
No. Staying with a cheating girlfriend is not a good idea. Trust is the foundation of a relationship, and once she has cheated, that trust is broken. It will likely lead to more pain and insecurity in the future.