Not always.

I said "no", but breaking trust in a relationship is a serious event and it shouldn't be taken lightly.

To me, someone who cheated in a past relationship is different than someone who is cheating with you in your own.

And some people just aren't mature enough not to (this is very, very different than consensual polyamory) and need to work on things before a seriously relationship is tried again.

Other. I hate that sexual 'sin' is seen as the Worst Possible Crime, when there are so many other ways you can break a relationship and hurt a partner.

Like Dr. Phil says, "the best predictor of future behavior is past behavior."

Whether he would ever do it again is irrelevant to me because I believe in "fool me once, shame on you, fool me twice, shame on me!" Cheat on me once and we're through, pal. Period.

When in a monogamous relationship, my husband and I were always faithful. Before that, we had an Open Relationship, so seeing other people was accepted. I've been lucky that I've never been cheated on (so's he) but if it happened, I do believe in forgiveness, and would try to work it out. We've been together for decades and I know we could work it out.

It's a different story for some people. I know some women who were the "other woman" when their man was supposed to be monogamous with someone else, the guy had a history of cheating and then she was surprised when he cheated on her. For some people it's a pattern, they are not sorry, and will do it again, if they think they will get away with it.

With other people it IS a one time thing.

My Man and I just saw the movie The Descendents last night. I think it had a very realistic portrayal of the doubt, anger and eventually forgiveness that can happen when infidelity happens.

I know people who have survived cheating and gone on to be completely monogamous, and I know those who are either serial cheaters or are married to serial cheaters. IMO, cheating in a marriage seems worse, as you went to the trouble to get married, make the commitment and all that in the first place.

I don't see it as all that horrible in teen "going out" relationships, because most of these are doomed to break up anyway. I do think it's a much bigger deal when you are committed to each other, have a home together, children, share finances etc. In those cases you have to trust the other person to get through life. When you are just dating, it's often casual, and people come and go frequently and drama seems to be the order of the day anyway. Adult, monogamous relationships, where one really is committed and really has something to lose is a different story.

JMO. Your mileage may vary.

No, I don't believe that. I believe people cheat for very specific reasons and if those problems don't exist in the relationship, then there's a significant decrease in the chances they will cheat again.

nope not always

It depends on the person. I think it's a shame to use an old saying to permanently sort a person into a category that they don't necessarily belong in.

I think people can change

I don't believe a cheater is always a cheater.

I think if you're with the right person, you won't cheat. That doesn't necessarily mean that you haven't cheated before.

I have to disagree. I cheated on a boyfriend when I was 18 and am now almost 27 and have never done it again.

Its a tried and true true story,

I don't believe it because when someone cheats there are circumstances with each time. I think there are people who will always cheat, but I was once labeled a cheater. I cheated on one of my exs, but there were quite a bit of circumstances with it, but I have never done it to another guy or since that time. So I believe that people can change.