hmm, yes, I do think they are linked - me and my ex were together for 12 years - we gradually put weight on when we were together, lost some, then put it back on again... now we have seperated, I weigh the same, or even a bit less than I did when I met him...
I think part of the problem initially was that we both liked food, and enjoyed cooking and eating... however. as time went on I think it became more about me not caring about how I looked, about becoming quite depressed and down in the dumps, and the relationship becoming increasingly stressful and unhappy... I feel that I have a new start now, but I'm very sad that some years were wasted...