Originally Posted by fredweena

I was almost 220.
I met my So when I was 175ish. I didn't choose to lose weight.
He left.
I lost 95 lbs, total, and gained a ton of self confidence.
He came and went and came and went and we're together now for good.
I gained back about 20 lbs for several reasons and we're both working hard to lose it. Both at the gym every other day with very few exceptions, both doing portion control, both monitoring calories closely. I haven't lost a damn thing pound-wise, but my clothing sizes are returning to where they need to be (hooray for muscles!) and he's lost 20 pounds and 3 inches off his waist.
Keep in mind that no matter what you do, men and women will lose weight at different speeds. I haven't met anyone who lost 20 pounds in two weeks in a healthy manner. There's something up there and you're much more likely to gain it back immediately if you lost anything that fast.
But all of the above posters are right. If she doesn't want to do it, than she isn't going to. You can't change it. Congrats on your own weight loss. And it sounds like a conversation that you don't want to have is looming. Good luck.