You were broken up. She didn't owe you. Either you are Together or you are not; and when you are not, the others love-life is their own personal business. In the real world, no-one can be 100% what the other wants. Of course, when you are couple, you make do with what you have. That is what being a couple is all about - I am yours and you are mine. But if you break off, it is not surprising if the other goes for what you could not provide. That she jumped when you were broken up proves nothing about what she would do if you were together. Probably she would honour the agreement of Togetherness. Until you know otherwise, assume so.

I agree with Alec. If you are broke-up, you're broke-up. Sometimes, people fall into something, (like with her ex), because they are upset and looking for comfort from a friend. I know, it doesn't just HAVE be the ex, but sometimes, that's all that's available. Try to be more understanding. Did you break up with her, or she with you? That may tell you a lot. If she did the breaking-up, you might have a LITTLE cause for concern. Notice I said "little". You guys were STILL broke-up. If you want to be with her, let it go and start re-building y'alls relationship. Otherwise, break it off for good, and go your own way.

What she did when she wasn't with you does not equal cheating. It may be a sign that you shouldn't be with her, though.

Well you had broken up, so I don't think you can throw this one in her face I am afraid.

I only have one big concern. You guys only broke up for 1 WEEK..not 1MONTH or 1YEAR. How come she can easily get rid of everything and had sex with her ex? If she really upset, there are so many ways to deal with it sharing with her parents or friends or counseling. I don't think SEX is the proper way. Even you guys get back together, if one day you guys argue, she might also have sex with others. Can you accept this?

I only have one big concern. You guys only broke up for 1 WEEK..not 1MONTH or 1YEAR. How come she can easily get rid of everything and had sex with her ex? If she really upset, there are so many ways to deal with it sharing with her parents or friends or counseling. I don't think SEX is the proper way. Even you guys get back together, if one day you guys argue, she might also have sex with others. Can you accept this?

If you two were broke up, she didn't cheat. If it's bothering you so much, you should talk to her about it, or move on.

Sorry but you DON'T have a leg to stand on at all, she owes you nothing as she was single at the time, and if you see this as cheating then I feel sorry for anyone that gets involved with you

OMG! I can't believe the answers that I'm reading. People here are clueless and young minded. Listen, If she broke up with you for a week or even month and she jumps in bed with her ex-boyfriend it only means that while you guys were broken-up you were not a concern or not even a thought in her mind (let's be real). If you follow and ask question to people whom are really in love and ask them "how soon after you break-up with your better half will you have sex with another partner?" I tell you what. The answer will not be a week or even a month. Why? Be cause they will seek ways in repairing the relationship with the ex. Not go out and sleep with another person. It wont be no week kid. I'm sorry, she clearly didn't love you enough to give the relationship enough time to repair it (she has no self respect). She bounced back in the arms of her ex? Where were her feelings at the time of the break-up? Why did she really break-up with you? That's the question you should be asking. Clearly she does not respect you and she's not sorry; that's why she has not confessed to you about her ex. So, according to these clever answers here on this site (clearly from the young and inexperienced)all she has to do is break-up with you and she's clear to go and sleep with whom she wants and it's ok? It's only ok, if the break-up is permanent. If she comes back them you must ask yourself; "what was her motive?" Again I ask. Where's the love? Where's the respect? Clearly there's non in this relationship. Monsterette.com - Women's training camp