Demanding a certain look from a person sounds pretty bad to me no matter how good of shape you keep in. But hey, this isn't really a nice fun clear cut issue.
I wouldn't want to date anyone that cares less about my body than me. If I'm a healthy person who eats right and exercises daily to stay in shape, I wouldn't want to date someone who lounges on the couch eating potato chips all day.
I see nothing wrong with someone going "that's unacceptable." And if said lady/gentleman wants to continue lounging around, I'm sure there's a boyfriend/girlfriend around that accepts that. But the healthy person sure as hell isn't a scumbag.
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TheRock ~ Slow dramatic zoom-pan. Doesn't phase the hooded man.
"You have issues." - MWC. Pot. Kettle.