Hi tony.
If you keep doing what your doing you'll keep getting what your getting.
My sponser told me that over and over when I was working on life problems early in sobriety.
"Nothing will change until something changes" was another one..
Boy I hated it when he told me those things..
But he was right...
You and your girlfriend are overweight. This issue is effecting other areas of your life,,some profoundly so. Unless you both face this, deal with it or accept it and all its consequences,,then it will always trouble you.
Maybe you can both decide as a gift to each other to reduce your weight. Make a loving adventure of it...enjoy the process,,encourage each other by seeking solutions and working on them together...reward yourselves for reaching milestones,,do something new that you never did before (in bed or otherwise) as you reach small but achieveable goals...
This is your life Tony and I know what you both deal with is hard,,,but hard is not impossible...it takes a decision and work,,,but when we overcome anything that we choose to overcome,,the satisfaction it offers is priceless....
With Care,
Lenny