Your post assumes sex is automatic in a marriage. It isn't. In fact, it's one of the biggest complaints men have about being married. Getting fat will greatly exacerbate that problem. If she gets fat and you don't at least there's some competition anxiety that kicks in so you hopefully get laid more often. The worst case scenario though is a woman who gets fat and stops having sex due to feeling insecure. Unless she just had my kid I would start cheating on her.
Yup. I call it the wife 2.0 update. No matter how enthusiastic and into you she was, or how different she seemed, or even how sexual she was, usually within 6 months or so it's like her software just automatically updates and she transforms into every ex you've ever had. She becomes preoccupied with something else, with plenty of plausible deniability to where it's pointless to even discuss it. If she has something legitimate, like a job or school, she will exaggerate how busy it makes her, even though she finds time for female inanities like looking at pictures of cats or tattoos or whatever she's into on tumblr or whatever and watching stupid shows. If she has nothing real going on, she'll still become consumed with something else, whether binge watching shows or a hobby or an activity.
And sex always declines to being that the default is not having it. It's more frustrating than just being celibate because you're next to this chick in bed who you're presumably attracted to because you married her, but you know you're probably not having sex and being shot down for trying gets tedious, and even if you do have sex it will be a while until the next time so it really doesn't keep you satisfied anyway, you'll be frustrated again tomorrow, yet you have to be exclusive with her.
It's like they all become the same girl, and from my experience, no amount of game or understanding can prevent it. It only delays the update, and the level of unpleasantness she thinks she can get away with, because she knows you have options and won't be destroyed by her and can walk away if she crosses the line. Also, the complaint of her getting out of shape is just one side of it. Trust me, a girl who's obsessively into fitness can be even more annoying, going to the gym all early in the morning, reading article after article about exercises and nutrition; it's still just a way to be consumed by anything other than you.
No matter how busy someone is, they make time for their priorities, even if it were to just sit down for 20 minutes, not be looking into their phones or whatever devices, but once the 2.0 update happens, they all become like that. And this is coming from a guy who is busy with his own stuff but still takes her on surprise dates, is working out, focused on his own stuff, has an active social life and is mysterious and unpredictable, has a grasp of red pill theory, carefully screened her beforehand, lived with her beforehand, and is doing better in his life than ever before, constantly improving.
I think they all update to wife 2.0/
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