Sure there has to be some level of attraction, however, I believe we are attracted to more that just the physical, as Red6 has pointed out. Good conversation, common values, etc. will last a lot longer than a 6 pack! Plus, if the only thing that's wrong with him is his "bush" work with him honey and take that boy to the barber shop!! You know how we do it!
LOL
Seriously, while I was VERY attracted to my husband when we met, in the 15 years that we have know each other he (as I!) has changed quite abit--by probably 50 pounds!!
When I look at him I still am attracted and feel the love. If the basis for our relationship was his looks (or mine for that matter--sista needs to hit the gym too!), we would be in major trouble right now!!