| | Re: Getting married in 10 days - fiance caught trying to hook up with a guy.
I agree with everyone with one modification. I don't think the faithfulness problems are anyone's business, and should not be discussed with any family members, yours or hers. In all likelihood, you should call it a day on this woman, but if there is a chance of reassessment at some future date, you don't want to burn your bridges. More importantly, it's no one's business why you did not go through with it.
You simply say that marriage is a permanent commitment and ultimately I didn't think we were ready, at least I wasn't. If she disputes that with you, you can say, I understand you were resigned to marrying your backup, but that is not a basis for a marriage, at least for me.