I hear you! I found last time I was bulimic (when I was 18-20) telling people only helped in as much as I'd then have to really control (or better hide) my bingeing and purging. But it was too much for my BF at the time, who was also 'disgusted' or at least said so to try and stop me. I didn't need that feeling of guilt and inferiority! He, of course, ate whatever he wanted, naturally controlled his portions, and was skinny as a rake!
Then there were my parents, who did quite fairly and rationally point out that my habit was extremely expensive and annoying to them (i.e. bare cupboards a day after shopping), and that curbed me quite a bit. In fact having to pay for my own binges was a good step towards control when I was a poor student.
Although my current partner doesn't know about the bulimia, it is very important to me that he understands that I'm doing LC, that the wrong foods make me overeat (I don't say 'binge' and never mention 'purge'), and that it's best for me not to have them available. He's very supportive. There are quite a few high carb things he likes and I don't, such as bread, pasta, so some of that is no problem in the pantry. But he knows that my big problems are with creamy cakey/puddingy things and high-carb chocolate. He helps me find LC ways of getting treats and, most importantly, we always have meats, eggs and veges on hand. He's becoming more and more LC as a consequence, and in combination with the weightlifting (which I also started him on), is looking fantastic.
Re the unable to purge thing: yes, I've been there! I really try to avoid that situation now for two reasons: it's impossible to get it all out and the more you get out the more acid there is to damage throat and teeth. I don't want this to sound like a pro-bulimia post, but if you absolutely can't avoid a binge and purge, do everything to protect yourself from the stomach acid. There are actually dentists helping online with this, for instance:
http://www.irandental.org/teeth/tee...ating_disorders.
The way I can usually avoid wanting to purge everything is also the way I can often avoid a binge in the first place: I have a good LC meal first (if it's available), protein, fat and lots of veges so there's little room and no real hunger left.
However, one danger zone is when I'm hungry/bored/stressed and there's nothing LC on hand. So planning is everything, and it's so hard when I'm not at home. Boy, am I tired of sitting in a car snacking on nuts!!
Another danger zone is even if I've eaten a good meal, but there is unlimited dessert available (i.e. a buffet). I just can't go to buffets at all.
I guess another trigger is the 'all or nothing' mentality that LC does rather encourage, you mentioned something like this. I.e. if I've cheated a little bit, say on chocolate mousse, then I'll think 'I've blown it. I may as well really binge and then get rid of it all'. I am looking for ways to be generally LC but be able to take and limit high-carb treat if that's all on offer (e.g. a restaurant dessert). I think Dr Rosedale helps quite a bit with this. He says if you do 'by mistake' eat a high-carb food, just exercise gently to immediately use up the sugar, and you're back on track. Of course he didn't mean big binges, LOL! Some days in France I managed this. In Paris we were walking many hours a day sightseeing, so most days I actually ate one expensive treat from a patisserie and felt OK about it. We had rented a little apartment and all the food there was healthy, LC and controlled.
The problems started when we were driving around the rest of France, sitting in a car a lot, with quite a lot of stress and great uncertainty about where the next meal was coming from and what it would be. I had to negotiate each restaurant lunch, getting them to swop the usual meat and fries (yes, that's the average French main course - no low-starch veges at all!) for meat and veges. LC snacks were really difficult on the road, especially as the car was warm and hotel rooms had no fridges, so keeping chilled food became impossible. Nuts, nuts, nuts... So then I'd get hungry, stressed, angry at the situation, sneak off to a supermarket with incredibly cheap puddings et voila - huge binge...
Indeed, NZ is gorgeous, and I'm in bliss to be here in warm spring weather, everything green and the light so intense. I loved our trip to Europe, and now I'm loving being home. No bingeing since we got back, either, because here I can be in total control over what is in the fridge and pantry.
Can you get your partner to understand what your triggers for high carb overeating are and be supportive in keeping them out of the house? And can you let yourself eat enough protein, fat and veges to feel satisfied, without worrying about calories too much?