Handsome/beautiful. Someone who is handsome/beautiful will always be that way, even as they become older. It is something more than just sex appeal, it is physical as much as it is mental.
Oh darn, someone replied while I was typing

Vanilla Coke. Reminds me of the soda fountain days

(Not that I was alive back then.)
Do you think there is only one person you are "meant to be with"?