Is once a cheater always a cheater?

It depends on the situation and person.

yes he will do it again!!!!

once a cheater always a cheater. u can try to trust them but u will always have that in the back of ur mind, and find that u are calling them, following them. But do what u think is best, I would end it

I cheated on 3 guys. I look at that as a different part of my life. I haven't cheated in over 10 years with two different relationships and I don't plan on doing it ever again. And if I feel like I might- then I know it's time to seriously re-evaluate my relationship.

I have changed. There is nothing to make me think that guys can't make the same change I did.

usually, patterns do not change, past history is best determination of future behaviors

sometimes, it can be a one time deal - but this is not the norm

if someone cheats on you, best determation if he will do it again, is how far will he go to prove himself worthy again
if he even once gets tired of talking about it, "aren't you over this yet?" "you need to move on" etc..
then he is not worthy of regaining trust and luckly that he will cheat again

Yes IMO. That could be because my feelings of trust would no longer be there, but all the same.. for me.

not really i guess it depends on the relationship...my SO cheated on me and he has done everything to get the trust back and we are so happy now and i believe that he has changed bc of his family that he has now and he doesnt want to lose us bc he knows that he iwll lose us if it happens agian

No.

Each and every person who chooses to cheat has a reason for doing so. In most (not all but most) cases, the reasons usually break down to this: Not being happy,fulfill, or satisfied with themselves &/ or their relationship (usually a combo of both... the reasons they are unhappy/unsatisified or unfulfilled may vary, but those are the base feelings). Those underlying reasons determine the likelyhood of a person cheating again. If those reasons are addressed and rectified and the person becomes someone who is happy with themselves and their relationship, they most likely will not cheat again.

Also, no one reacts to situations the same way every single time they encounter them. So, it's impossible to determine what choice a person will make in any given situation, until they actually make it.

No I dont believe so...cheating is a result of an underlying issue. Weather is be your not getting something out of the relationship your in and looking somewhere else, your bored with the same ole thing and maybe just spicing up the relationship would fix it. You dont really want to be with the person your with. You have a drinking problem....if thats generally when you cheat. There are so many factors to think about, it just really depends of the situation and the people involved.

id like to add though.. it takes both partners to restore the trust. if the cheater has apologized and said they won't do it again, the victim needs to make a decision if they can trust the other partner or not. a healthy relationship is not checking the other person's emails, text messages & phone calls, questioning their every move. it takes a "leap and the net will appear" approach. the relationship can actually grow stronger.