I wasn’t intending to say we only like muscles as an indicator of lifestyle. I was saying they’re also an indicator of lifestyle, so even if we are attracted to them we may still pass because it doesn’t match the kind of personality we prefer, and personality is generally a lot more important to us than appearance (generally, but not always.)
For instance, I find muscles attractive. I like that they show somebody’s interested in staying healthy, but I don’t generally date muscular men simply because I’m not into the fit lifestyle. I much prefer a guy who’s more likely to join me playing my favorite games or watching my favorite movies, because I’m a nerd and those are the things I like, and a guy who’s a little chubbier tends to be exactly that kind of guy.
My mom does this. Can’t count how many times I’ve been looking for something only to be told by her “I didn’t touch it. I never touch your stuff. You must have lost it.” Only for 3 hours later her to find it and go “Oh right, I moved it here so it’d be easier for you to find it.”