My marriage means alot to me too!!! I am married to my best friend!!! Been married 32 yrs.
2 reasons - that would put a halt to my marriage (even this far in) - Abuse or Affair.
Same goes for me. I love my husband with everything in me. Those are the only two reasons I would ever leave him. We've only been married 9 years but we've been to hell and back together and neither of us has been abusive or has cheated. There's no excuse for either.
A lot would depend on the circumstances of the affair, and how it ended, or if it did. I would not tolerate more than one...but, I can understand that everyone is human and work out a one time mistake. Even if it is more than a casual affair. If my husband thought he were in love with someone else, and then came to his senses...I could still work it out. Again...Once. It wouldn't be pretty, though. I think I would have to be a mess for a while. Peace to all...
I honestly don't know, I have been married to the same man since I was 17, he's the only man I've known, if he had an affair I think it would kill me... I honestly love him, I couldn't do that to our life.