Mooidik:
my girlfriend had put on weight and thought it was terrible!  she is now losing weight!  but i'm getting fatter.. finally fatter!  and honestly i thought i wanted to see her thicker!  but honestly i want to see myself fatten fattening and getting extremely fat!!and she can get slim
I'm interested how common this scenario is, because I've had a similar mindset change over the years.
My partner has lost quite a bit of weight over the years, and isn't particularly interested in getting bigger again (which I'm totally supportive of - as much as I liked her being bigger, it's her body and she's happier this way).
Since that's happened, I definitely find myself thinking about my own weight a lot more than I did. It feels a bit nicer to focus on something I like, rather than something my partner dislikes, I guess?