I gained some weight and I can't believe what my gf said to me

[Context: I used to be underweight and suffer from an eatting disorder and gained healthy amount while im healing] I asked her if she minded me gaining weight and she told me she was proud of me. I wann cry I can't believe she's proud of me i thought she might find me disgusting a bit but she's super proud and calling me beautiful now rn. I can't believe she's proud of me