another perspective wrote:
Holy smokes, did NONE of you save sex for marriage?? It's no wonder you aren't getting any with your now incompatible significant other, you got married/engaged on pretty much no basis other than that the "sex felt good" at the time.. GO FIGURE!! Save it for marriage like I did, 11 years and still going strong. Of course, every marriage has their dry times, but I've never been (overly) upset by it. Stick with marrying someone you can live with WITHOUT having sex with them, and you're in for a ride, quite literally, after the ceremony.
Your theory is flawed. Two of my friends who waited for marriage have wives with zero sex drive. They're the only couples I know of with post-nuptual shutoff. Ever think that a lot of people who wait until marriage can do so because they have low sex drives?
This is the theory my wife has. Women talk about sex much more amongst themselves than men do and she gets the feeling that women who don't respond after marriage just never had that feeling beforehand. It makes sense. Although there is a lot more psycho stuff for the woman going on in a given potential relationship, I'd think it's difficult to turn on and off based on a ceremony.