I had to wait until my husband had a few drinks in him to get him to admit that we weren't having as much sex because of my weight.
The topic of my weight (well, both our weights) had come up before, but after previous attempts to lose weight I was terrified of trying again. I've only tried twice before, but both times I gained back far more than I lost, and I wasn't ready to go through that again. I knew he didn't like my viewpoint (he believes all it takes is willpower)... but I didn't know what to do about it, or even how to look into it. My doctors had too many different viewpoints and too much varying advice, and I didn't trust anyone anymore.
But after our conversation, I realized I wasn't being fair to my husband. Both of us were the same weight and height (5'10" 180 lbs) when we met, and he'd been a perfect gentleman and always my best friend, and barely said a word about it despite that I'd gained 120 lbs.
Love can be unconditional, but I'm not sure lust can!
So I came here.
The stories on the Success Stories boards are what convinced me to change my diet. And in conjunction with real food/whole food blogs, I'm now a calorie counter for life. I've set goals, and I will reward myself at intervals along the way for sticking to the plan I've set, even once I'm at the point where I'm maintaining.
My husband had also gained 70 lbs (he weighs 250, but his weight gain leveled out a long time ago and mine kept going), and when I told him I'd found a lifestyle I wanted to switch to—eating whole foods and keeping track of calories—he jumped right on board. We're both on track and accountable, and I know he feels 100x better about both our bodies already.
The sex life's already on its way back to normal, if anyone's wondering.

TMI, I know.