<human>: Give me the gist of the text in a nutshell

We've been together for 6 years, and moved in together 4 years ago. We both gained weight after we started dating, and both resolved to lose it. She is now obese, but I managed to stop, and reverse my weight gain. I'm now at around 12% body fat. I am no longer physically attracted to her, and haven't been for the last 4 years. We still have sex 1-2 times a week, but I no longer lust after her and it is starting to feel like a chore. I still love her deeply in a platonic and romantic way, just not in a passionate one.

She also has a condition which makes it more difficult to lose weight, and get pregnant. We had hoped to have children soon, but this condition may interfere with her ability to get pregnant, so she resolved to lose the weight first. That was 2 years ago, and while things have not worsened weight wise, they have not improved either.

We have tried (and had no major changes with):
 -Cooking and eating healthy meals together for the last 3 years
 -Exercise together, and apart (she exercises 3-4 times a week, mostly fitness classes for motivation)
 -Shared activities for health
 -Calorie counting
<bot>: Girlfriend is overweight, has had no success in losing it. Lost attraction to her, but having been holding out hope that things would change. Opinions?