it always amazes me that women are so shocked when their husband runs away with a slut...it's like, "Duh, what do think he wanted out of marriage in the first place?!"
How old are you?
Maybe some of us have had our fill of sluts and want someone that is intelligent, graceful, classy, loyal, and most of all not crazy. We are talking about the mother of your children here, not just a wet hole to stick your penis in. I've had all kinds of deviant kinky sex with hot women. The problem with all of those girls was they were crazy. At this point I want someone that I can trust with my children and bank account. Sex is important but it is my no means the number one determinant.
I hate to be cliché but anyone that is old enough and experienced enough knows you don't get married to have sex.