Well if you like being in the gym six days a week more power to you
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The slower a person loses weight with small systematic changes, the easier it will be to keep it off in the long run despite dietary indiscretion and without being a "slave" to your body. That's all I'm saying. I have the same ideas of what a diet is. I just don't think that "diets" aren't always the best way to go. A diet is a short term solution to what will be a longterm problem for most if they can't find a "lifestyle" they can adhere to. Sounds like you have found that so far and I agree, everybody has to find a thing that works for them that they can be comfortable with and maintain. But I have to question if someone will stick to being in the gym for six days a week for the long term. I've been down that road with other issues of training in ways that make you a slave to your body and it is hard to maintain enthusiasm for. Not doubting you, just rambling
I'm not saying there is anything wrong with the way you eat either. It's just that you ability to keep weight off has everything to do with how your body responds to the weightloss in the first place. If someone loses weight too quickly then evey little indulges has a magnified effect. It's like your body is primed to regain that fat at the earliest possible convenience. If you have been able to keep it off, then great!