I have been dating my LTR for a year. She is really great other than a few small things that irritate me and is usually super submissive/nice to me (cooks for me all the time, splits paying for things for me or pays for them herself, has good career, is feminine, etc.)
When I first met her she was slightly chubby/curvy but had great proportions and was sexy. She was probably 5'5" 140lbs at the time.
I had noticed her steadily gaining weight since we started dating. Now whenever I see her step on the scale she is about 155 lbs. She looks fatter and even her face looks fatter, and also has a belly.
I have sat her down on 3 separate occasions within the last 5 months and said "Hi Amy, I like you a lot for all of these reasons XXXXXX, however I noticed I think you've gained weight since we started dating. I still like you a lot, but I was a bit more physically attracted to you before... Do you think maybe you should get healthier and lose weight"
When I've told this to here she started crying and agreed that she has a goal of losing 20lbs.
Well.... it's 5 months later, and if anything she has gained 3 or 4lbs. She has lost no weight at all.
Fast Forward to last night. I had just eaten dinner with her, and I saw her inputting the calories into MYFITNESSPAL. I looked at what she was inputting, and saw that she had chosed a 1/2 serving for each item on her plate. I had looked at the food on her plate, and I KNOW it was more like 1 or 2 full servings per item. I said "Hey Amy, I use myfitnesspal too. Just letting you know there is absolutely no way you ate only 1/2 servings of each. You got to be honest with yourself when inputting that stuff"
She exploded at me and said if I mentioned it again "she is done".
What should I do in this situation?
TL:DR Girlfriend keeps getting fatter. I bring it up to her nicely and she says she will lose weight. Doesn't lose weight. Makes fake attempts at losing weight, but uses fatlogic and lies about her caloric intake