What to do if a guy cheats on his girlfriend with you?

If you didn't know he was dating someone and found out later on, you should tell the girlfriend and provide evidence (because most girls will blame you and accuse you of ruining their relationship) once you tell her apologize and make sure she knows you weren't aware he was dating her. If you don't want to tell the girlfriend just block the guy and never talk to him again. When this happened to me, I blocked the guy and tried to avoid him (because we kept running into eachother), I didn't tell his fiance because I didn't know her or even knew how to reach her but I made sure people around him know he's a cheater.

My husband and I have an open marriage. That means we sleep with other people. Where I happen to live, in a large metropolitan area, I come across a lot of unattached or semi-attached men who I end up enjoying spending time with and maybe a little bit more. My relationship with cheating is complex. While I have never myself cheated -- (I was actually a superstar monogamist before becoming open) -- I have been cheated on. No one deserves that experience, and in my view, it is no one's fault except the cheater's. The way I see it, if one enters an agreement with their partner to be exclusive and then see other people, cheating is a form of lying. At the same time, I see a lot of unattached guys with what we call "girl things." Starting here, I am speaking from personal experience. This "girl thing" believes she's in a serious relationship with the fellow, yet he had barely thought to mention her over the course of my knowing him. Meeting her at a party, I was surprised to find out they were making all sorts of plans, like getting dogs, moving in together, moving to another country together in the future. None of this ever came to fruition in over a year since it was mentioned. When I see a woman put herself in this position, it reminds me of myself when I was cheated on, an experience that left my heart in tatters. He said all the right things but with none of the deeds to back it up. I wish I had been smarter. Now that I am married but have a lot of unattached male friends and even hook up partners, I do not make it my responsibility to investigate their relationships. I make sure to only get to know and sleep with men who I regard as trustworthy. But in the case that I do find out another relationship he has in has turned exclusive -- or if I can tell that the girl involved believes it to be, even if he fails to bring it up with me -- I put an end to the romantic parts of our relationship. To be honest, when I went through this, I struggled to remain friends after. I did not appreciate the way he strung her along while also wanting to have access to me. In short, I do not consider myself the relationship police; if a man says he is single, I will generally take his word for it and continue to get to know him as I wish. However my advice to all girls -- no matter which side of the equation -- is this: be smart. Don't be overly invested in a relationship that is bearing no fruit. And tread lightly when a man claims to have a complicated or unattached relationship status.

It means he is not worth you time and effort obviously love. Telling you to move on is really easy. But it is you who should believe that you can. Take time for you to heal. Spend time with your family , friends and pets. Try to develop new hobbies. Focus on your dream at least keep yourself busy to not remember him. Think about the day you will be a better person. You can do it. I believe in you now it's your chance to believe in yourself and be yourself . All the best friend. Take care

You need to tell his girlfriend that he cheated on her with you, that he is not good enough to deserve her or you. You may experience guilt.

If you didn't know, immediately cut off all contact from the guy. Reach out to the girlfriend in a polite informational message.

Consider how it might have made the girlfriend feel. If it were you being cheated on, would you feel upset or angry? Perhaps talk to the boy and ask that he tell his girlfriend what happened.

Actually, I probably tell him that he cheats, next thing I do probably would be talking with him seriously about this and if he doesn't stop cheating I would leave him forever...

Speak to that guy directly , if you don't want to get involved between them tell him straight away and leave, and be happy you came to know about the matter soon enough.

Calmly contact the girlfriend and tell her about it, if she doesn't believe you try to show her proof if you have any. Refrain from insulting her or the guy, stay calm the entire time and explain what he did. If she starts acting up, don't do the same. Try to calm her down in a nice and friendly way and end the conversation in a friendly way.

If I was in your situation, I would speak to the guy about what happened and tell him that he must tell her, otherwise you will tell her. It is unfair to keep her blinded by it and I think you should let her know, in my personal opinion it is the right thing to do. It will save even more of a heartbreak if she finds out further down the line. Good luck :)

The girl has the right to know who she's dating, i would make sure she found out that he cheated on her

One thing is to decide if this is the kind of person you want to be associated with. If his qualities are so strong that you choose to be with him, prepare yourself for him doing the same to you with someone else.

I would ask the girl for forgiveness becose even though I have done it without knowing it is still a mistake

Ask him what he intends to do about cheating and if he plans on telling his girlfriend about cheating on her. If not then make sure that he knows that his girlfriend has the right to know that he has cheated and know that there are consequences for the both of us.

That all depends on how you feel about it. You should probably talk to the guy, see what is up with him cheating with you.

First, if you were already aware this guy had a girlfriend you might feel bad at yourself. because this is such an unpleasant situation. Then, considering talking to the guy if you have the chance, asking him if he's willing to come clean and confess to her girlfriend he has cheated. I would suggest this first approach before talking to his girlfriend directly.

You have to question this man's loyalty. I mean if you to were to start a relationship for example, the chances of him repeating this cycle of behavior is pretty likely. Definitely be cautious and keep your best interest in mind.

That's a very sticky situation. At day's end, you weren't the bad person in this unless you knew he had a girlfriend and enabled him to cheat.

Leave him. If he cheated on a girl to get you, it could mean he can do it again to get someone else.

I will think he is not happy with his actual relationship and he has to talk about it with his girlfriend... I will not proceed to have something with him if I know he has someone waiting at home. I will put a stop on him if he tries to have sex with me.