Body gets the sh!t beat out of it over time, it decays, that's just what it does.
I mean yes, physical attraction is an instinctual initiative part of attraction, but it's also less spectrally important than other factors.
But something like stretch marks? Really? Yeah, they suck, but they're pretty common and I would argue that there are DEFINITELY worse things to be concerned about than stretch marks.
There's a difference between what's hot and what's a hot mess.
I don't care how hot you are, if you've conducted your life in a way that makes you a hot mess, that totally negates the fact that you're hot.