Thanks for your answers up to now!
But, dammit, no one saying that I should look for more contact. As I said I would be glad already if we could end this on good terms.
The contradiction betwen her saying that she thought it's over and her reaction now is the main problem I think. I probably hit her while she was seriously thinking about coming back to me.
I told her about the fling for 2 reasons: First (and really more important) I want to stay honest towards her and couldn't lie to her on such a scale.
Second (for those of you who think I'm completly irrational) there is a slight chance that she might have found out, the other girl was not a complete stranger (but far from even being an acquaintance).
You are also right when you say that she had a high whilst knowing she could come back to me anytime, and this is now destroyed. She even admitted this.
I am also sure that she does not have had any other guys since getting together with me. I know that I can trust her in this point.
And Ross was only in a relationship break! And he wasn't even honest to Rachel and tried to hide his affair...so I'm still better than him
Well it's just a day or so since I told her, if she is still disgusted by me in a few weeks, I probably start to realize that it's over