I don't know why there is any debate over this issue. Seems to me like Giselle was on the biggest stage and pushed pause on that for Brady's career. Now she's tired of that shit and ain't doing it anymore.
If you're Giselle, what does 2022 Brady give you, that you need? Fame and glory for that annual trip to the stadium in Cincinatti? Free trip to the owner's suite when the Pittsburgh away game comes around on the schedule? Have you seen the people that attend these games? This is slumming for her.
Brazilian supermodel's friends are telling her "if you had at least married a soccer player, you could spend your time in Milan or Barcelona." Girls like Giselle could be sitting on a pretty nice yacht in Monaco watching gran prix, or rubbing elbows with the most sophisticated and/or stylish people in the world. Instead she's in Tampa. What's the nicest restaurant in Tampa?
Fuck all that. If I'm Giselle, I feel like I am wasting my shot and I try to salvage what is left.
What's her alternative? Sit at home bossing around the help and watching the Kardashians? Keep your fingers crossed and hope to ride on the float through town with a superbowl trophy once a year? That gives her zero status and fixes nothing for her. Oh, wait, I know what it is - she gets to stand next to Brady while a bunch of sweaty dudes ask for autographs. And maybe when he does give up playing, she can follow him around to be a coach or ESPN commentator? Woo-hoo!
If the question is, "how good is Tom Brady?" then the answer is simple. I get it, football dudes idolize the really good football dude.
If the question is "what does GB gain by following Brady around?" the answer is, less than zero - she is losing time and probably money and could either be earning more, or having a lot of fun in a lot of nicer places than ... Green Bay.