“Someone whom you do not find unattractive”
is not a euphemism for
“someone whom you find attractive,”
but for
“someone whom you do not find repulsive.”
(Reminds me of that whole “beheima asher lo…” – Exactly. 🙂 )
That’s all that’s considered to be necessary by Chazal.
If someone wants more than that, it’s their choice to make.
Also, I don’t think physical attraction is meant, but aesthetic appeal.
(Actually, can we get a discussion going about whether
the Torah and/or Chazal distinguish between the two?)