The reason why we want an attractive mate: genetics. We want to have a good-looking mate so we can have good-looking children, who'll either:
- Mate with good-looking people & produce good-looking grand-children, or
- Become trophy spouses to less attractive people with money, producing moderately attractive grand-children with material advantages that enable them to secure a mate with even more desireable genetic material, resulting in uber-great-grandchildren
That's just the way it is. Personality & intelligence count to a degree - most people would prefer a likeable, intelligent '8' over an idiotic, bitchy '10'. Furthermore, there's nothing wrong with being unattractive - hell, embrace it! Think about how much time each day you'll save by not having to primp. Find someone of equal looks, love them for who they are, and be happy! Don't write in to extreme makeover about how you need facial reconstruction and a set of pec implants or fake boobs to be a worthwhile person.