my friend betrayed me,should i forgive her?

If you think you did all you could to make your friend change her mind and she still didn't listen then I guess it's time to leave her alone. If she doesn't care about herself then why would you. I don't mean to sound so bad but I also have friends who did what your friend is doing now. I'm sure she will realize her mistake sooner or later. Just be there when that time comes.

Based on your story, I don't think your friend has betrayed you. She might have lied to you, yes, that would be a fact. I understand you only want what is good for your friend. You are right telling her to stop her relationship with a married man, but I don't think it is right to force her to. Leaving the man would be her decision, not anybody else. It is enough that you keep telling her that its wrong to keep a relationship with a man who is married. But leave the decision to her. She is in love and no one can right her mistake but she herself. Just hope that one day she'll come to her senses and break up with the married man soon. As to forgiving her, yes, I think you should, especially if you feel like it. She needs you now more than anytime in her life. She needs a friend who will stand by her even in her mistakes. I'm sure she's also having problems with her relationship especially that her lover is married. It would be good for you to stay by her side until she comes to her senses.

You should just listen to your heart and follow it. And as you have written your friend is in affair with a married man, I must say that in most of such cases girls are cheated by men. Try to convince your friend by various methods including exposure of that persn's truth in front of her. you can also make your friend meet that man's wife and let them share their views. You should also enquire about that person's attitude towards your friend and his wife as well. And if your friend is ok with the relation and that man is also desperate to then you should also accept him. And remember persuading someone to do something never yields positive results. And here I don't see that your friend has betrayed you, she is doing what suits her and nothing else. Better try to undersatnd her.

I think she just needs someone to talk to. Your friendster really relies on how much loyalty left towards her but bare in mind whatever her decisions would be you are part of it because you are her friend and there is a saying tell me who your friends are and i tell you who you are.