Re: They will fall in love with the hair in your ears and your snaggle teeth
The whole "we're not so shallow" act is oh so stupid. You have to be into someone if you are in a long term relationship. You can't ignore your inner animal forever. Sooner or later your revulsion of your partner will rear it's ugly head. Then the marriage will implode.
You can't ignore your inner animal. You need something to keep yourself from strangling the other person when things get difficult. Genuinely fancying them helps in this regard quite a bit.
Many ideas sound good or "enlightened" when you first hear them but are ultimately completely impractical or ultimately highly destructive.
Eternity will likely include a few dark days and you need ever advantage you can get.