southern girls finish last

I was talking to this guy online today (he was responding to my silly personal ad), and he insisted that I look at his personal ad before chatting with him, so I wouldn't be wasting my time. I thought that was weird to start with, so I shouldn't have bothered, but I checked it out. He was good-looking, but it came off like a resume, touting his proud achievements. I read one line that was particularly bothersome, "Don't bother to respond if you're (listing of several bad traits), or extremely prudish." Dingding, red flag, I thought. I decided to be flippant, and wrote to him, "I'm extremely prudish, so move on." For some reason, I felt bad about my rudeness, so I explained that a guy who writes that most likely expects physical intimacy near the beginning of a relationship, and that I'm not about that. As you can see, I was giving out far too much info, but I felt bad about being rude, even though HE sent me a message.
He responded that he included that phrase (more like a contract clause) because he had dated several women who had an "aversion to sex." I was like, "aversion to sex? how's that possible?" He responded that they were waiting for marriage to have sex, even though they were in their late twenties, and that he thought that "was a bit much." I disliked his judgemental attitude, so I told him, again, "move on".
How is it that a teenager or a college student who wants to wait until marriage is respectable, but an older woman is not? Are you really "waiting" if you marry your high school sweetheart very young? Not that I disrespect that decision, but you aren't really "waiting" to have sex if you're just barely coming of age to do so when you get married. I know many women (more than I can count on my hands) who said they were "waiting" when young, only to change their minds later. Those who didn't make any such claim might have been looked down on by their peers (at the time), yet they grew up and probably had sex at roughly the same time as the ones who planned to "wait".
All I'm saying, is enough hypocrisy, and enough judging. Don't call a woman a slut because she has sex. Don't call a woman a prude because she doesn't. Don't praise a young woman for making a decision, and then call her a sex-aversive freak when she decides to keep her promises. Openmindedness is a two-way street.