Yep - that's the big unknown. In both instances she chose to sleep with a co-worker rather than confront the issues that were making her unhappy in our R. Before, I chalked that up to the fact that I was her first serious R and she didn't know what it was like to be with someone else. This time it shows that she's incapable of being in a mature long-term R. As much as I love her, and I do love her, I can't deny that unless she does some serious self-examination and work, the same thing will happen again and again.
