<human>: Provide a brief overview of the text.

Hi!
So 30/m here. My girlfriend is 26 and she thinks she's fat. I'm confident that this is just not true and she is a beautiful woman.

While she said that she gained some weight (6kg over the past 7 months - it's what she told me) I don't have a problem with it because it's perfectly okay and I think only slightly above average weight. But she is really really unhappy about it - things really are turning in a direction where I'm starting to have worries.

I have the feeling that her weight is kind of directly linked with her complete self-esteem. She thinks (I hope not but she told me that a few times) she's stupid and undeserving of friends and friendly endeavours. Like really really insecure. Only loosing weight would fix this for her - at least this is my take-away from recent talks about it.

Of course she's not stupid but really afraid to challenge herself or to try new things.. I don't think her weight is an issue but she's afraid of doing a full on hardcore diet again..after struggling with that once for a while. I don't want her do that. I said doing some exercise and not be stressed about it alone would do some good for her... but I can't push her to Yoga or Aikido lessons if she doesn't want.

I really enjoy being with her and she's a wonderful person but I don't (I realize I likely can't even) force her to be happy with herself...
So what can I do to help her overcome her insecurities and body image?
<bot>: GF believes she's fat and has low self-esteem. None of this is warranted. How can I help her?