honest man

I could have had your love had i been a liar too
and an honest man stands in the rain
Poetry aside...
Why is it safe to say "you're the first tall person i've been attracted to"?
Why is it safe, even playful, to say "you're the first old person i've been attracted to"?
Or the first thin person? The first young/short/bald/bearded/tattooed/female/male/skinny/happy/rich person? Basically safe, all of them?
Why, it can even be titillating to say, "you're the first white/yellow/black person i've been attracted to". Okay, i suppose "yellow" is not really safe to say. And okay, saying "you're the first male person i've been attracted to" could conceivably be unsafe.
But why, why, WHY is it safe to say those other things, but unsafe to say "you're the first overweight person i've been attracted to"?
Why is that? Even using PC language, why is it not safe?
I could have had your love had i been a liar too
and an honest man stands in the rain