If you're not already familiar with it, you may want to take a look at a book by Harville Hendrix called Getting the Love you Want... It looks at the very issues about which you've been thinkin'... It's a fascinating book and talks a lot about his theories about how we and our mate choose each other (and how it ties back to FOO issues similar to the ones you describe). It's a book I want to re-read.
-AlexEn
New: What a Weekend
H-48 WAW-49 M-22 S-14,9 D-11 EA disc.-11/07 PA disc.-3/08 EA2?-6/08 to ?