[UPDATE] Me [40M] with my gf [31F] 3 years. On vacation and she seems to have snapped

Original
My post didn't get much attention but just updating to show that if your partner is suddenly acting out of character, there's probably an underlying reason that needs to be worked on.
I asked her what was wrong and to my surprise she let it all out. This is what she said: there were teenagers playing volleyball in bikinis. It threw her back to when she was in school and her friends would be in pretty bikinis and could jump around and run without their breasts wobbling whereas she would be a 'fat lump' whose boobs wobbled when she ran and the boys would make fun of her. And because she was large chested by the time she was 13 (she hit puberty at 9), she couldn't wear any cute bikinis and was stuck in 'ugly swimsuits'. She said it just took her back to that time when she felt like an outsider. I asked her what she meant by this because by all accounts she was always popular and she reminded me that she was the only non-white person in her boarding school, and that hitting puberty at 9 meant she was way ahead of everyone else in her year who hit puberty around 12-13. She said seeing that just took her back to the headspace of, "I'm large chested, wobbly, fat." She said she was a 32E back then. She's now a 30D so she is happy and she knows that she's not that person anymore but she still sometimes feel it.
She still hates her breasts and I've offered to pay for whatever surgery she wants (this is something she's been wanting ever since I met her and I offered even before this. I would prefer she stayed the same obviously as I love her just the way she is but I know this is something she desperately wants).
She acknowledged that she has unhealthy body image issues and will on her own accord said she will start therapy because she doesn't want to pass on any of these issues to future children and also because she says she sometimes feels so burnt out and debilitated by constantly having to be militant about food and working out. She asked me if therapy works an she becomes less militant and she puts on a bit of weight would I still love her and I said of course.

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tl;dr: talked to gf and she told me what was wrong. It was related to her body image issues and she will go for therapy.


Source.

Geez....

Wait a minute...she was in ugly swim suits because she had big boobs? Hmmmm