A further reflection... I think one of the main things that drove me and my ex apart, at least in terms of miscommunications, and something that led to me shutting down emotionally, expressively, was her automatic dismissal of things when I would try to express some of this.
For her, it might have been the mis-impression that by talking about my experience of having men come onto me, it activated insecurities that she would not voice directly, for instance, the assumption that because I wanted her to understand that part of my experience, I might be suggesting either that I wanted a guy, or wanted to open the marriage up to include sex with men, when what I was seeking was just a recognition that this was, had been, and still was a part of my experience. (One of the triggers for my depression, the one that led to Celexa and a hospitalization for several weeks) was that once I was at a more attractive weight, I was starting, again, to get flirting looks from men on a regular basis, looks I'm fairly sure were expressions of sexual interest, or perhaps guys wondering what I was doing with a woman.
She was also insecure about her own attractiveness, admitted that being as assertive as she was, as blatantly flirty, that up until we got together her experience had been that men would be friends, or act like big brothers (she was a little sister to one of the more "Animal House" frats (in fact they were the Delta somethings) during college -- anyway, until we met (She 21, me 24) none of her flirtations had become sexual, with the impression that this was not by her choice.
Not sure what I'm even getting at with this, except that personal histories can be funny in un-funny ways, and partners can sometimes respond in ways that are more than a little frustrating. Granted, I must have sensed this would be a hot button issue for her, or I wouldn't have avoided bringing it up for more than 16 years of our time together.
But I brought it up because I wanted to be seen for my own history, and the reaction, rejection and re-interpretations were something that left me stunned in some ways, and also led to a huge drop in my conviction that we were able to communicate clearly about almost anything. This kind of dynamic was something, in the later years of the relationship, that had a big part in my tendency to shut down... it also was made worse in some ways by therapy, where I was talking about these things in depth and detail, and gradually making myself clearer, but I was doing it with the wrong person.
My ex had found the therapist I was going to, and towards the end she began to say things that left me thinking that she thought I was attracted to him, when I would only be mentioning him in context as I tried to bring up things with her that I wanted to have in the open. My therapist was not much of a fan of openness, and frankly did not seem to get the fact that I needed to be seen on my terms, or at least have my sense of identity out in the open... pretty odd when you consider he was a gay man in a very long-term, publicly visible relationship with his partner that was, apart from children, no less a marriage than mine.