I've been with my fiance in a long distance relationship for just over a year and a half. We've shared everything with each other involving our pasts, darkest secrets and such. She cheated on me once and I forgave her since I knew that something like that could happen and even though I was hurt, left it be before she cheated on me a second time with an ex, first in the game Second Life and the other in instant messenger and I forgave her again, said that we'd just get through it.
One of the things that she did before we met until AIM stopped doing it was go into AIM chat and look for people to cyber with, recently she decided to look to see if they had some still or they were back and it turned out they were, because of her past I tried to get her to get out and stop, she didn't and started to flirt while we were on Skype which she felt guilty about and I told her that was fine since she didn't do anything really serious, it wasn't like she cheated or anything in the sense of cyber sex and that was yesterday of the time of this post, even talked to her about changing the passwords for all of her accounts that she had apart from the one she has her best friends on which I did for her since I knew she couldn't do it, I did it with her permission, she gave me the username and passwords.
Earlier today, she made a new account and went on AIM chat with only the intention of talking to people since I was away for a while and she felt lonely, she also suffers from depression and she cheated on me for the third time, she led me to believe that she only had cyber with one person but then revealed that there was two individual people involved due to a slip up. I was hurt when she told me that she had done it with one person but after slipping up and finding out there was two people at least I'm aware about, I don't know whether to break up with her or stick by her.
I said to her that if she did it for a third time that I'd leave her but I do really love her and decided to make an exception, hope to one day get my ass to where she is, the US since I'm in the UK and marry her, I've always had a strong belief that you should stick by the one you love through bumps in the road and when they need you but now I'm confused and really don't know what to do.