Helloooooooooo! First of all...she has one of the best tools of losing weight right beside her...YOU! Having someone supportive and positive when things get hard is so important. Secondly, unfortunately she has to make the decision for herself. It sounds to me that she really wants to lose weight but sees such an uphill climb to the body she wants, that it seems almost impossible. But it isn't.
I just joined this board, but I've lost 120lbs through good old fashion diet and exercise...god help me. I am 27 years old and about 5'6...I got up to 300lbs at one point...so I know how dam* hard it is to look at what you have in front of you.
You can find lots and lots of great information on these boards. The thing that clicked for me was the silly phrase "investing in myself." I know I heard it somewhere, but I don't remember where. I just kind of realized that we (to our immediate knowledge) only live one time. I feel like a big part of my life was, I don't want to say wasted, but a big part of my brain was invested on what I COULD be one day...not what I was doing each day to get there.
I began keeping a journal of exercise...not food...I am terrible at that. I bought a cheap treadmill and walked 20 minutes after dinner. That's it. And then I began to add time and challenge myself. It really became MY time. My time to think and feel like this is MY thing. I got up to doing at least 45 minutes a day and got some 5 lb weights and began a little strength training. I then cut out soda...with the exception of a couple of diet sodas a month. I drink 100oz of water everyday, and I added fiber to my diet and lowered my fat. Diets don't work for everyone...but what worked for me was eating over 30 grams of fiber and under 20 grams of fat. It may be unconventional...but I did it and have kept the weight off for two years. I still have a little ways to go....but I have never gained. The thing is...I could have the occasional fat free ice cream or snack. I could have sandwiches, ummy meals, and pasta. I made it with organic whole grain pasta. I have lots of other trick that I would love to share.
As soon as the weight began to come off...that was the biggest motivation! You shoudl encourage her to come to this website and just begin to read. People have real struggles and real triumphs. She is not alone...we have all been there and she deserves to live the life she's dreamed. We can't always control the money we make, or what happens to us in our lives...but we CAN control our weight...it just takes time.
Rock it out...and keep being that supportive person you are...it will help her so much when she is at her lowest.