Stuck on Planet Freud

I think I have discovered why I am so frequently at odds with others and it boils down to a basic misunderstanding of human motivation. I would like to know that the greatest possible number of people whom I encounter would like to have sex with me. I attempt to comport myself in ways (obviously the days when I don't shower or brush my hair are failures) that make the people around me think, "yes, that's the kind of person I'd have some sex with." I assumed you were doing the same.

This is why I am so flummoxed by picks-nose-in-public, puts-smelly-feet-on-seat, doesn't-say-bless-you-when-someone-sneezes, and doesn't-hold-doors-open among others. I had assumed that, like me, other people wanted to be seen as sexually desirable and would know that sexually desirable people don't pick their noses publicly.

But this makes me even more confused since pretty much every advertisement since time began was about making yourself more attractive in some way so that people would be desirous of sex with you. Have we stopped wanting to have sex? I can't imagine that is true. Mostly because I feel that advertising agencies would have cottoned on and developed different ways to encourage our spending. They're smart that way.

In fact even when I'm being dismissive of someone, it is generally dismissive with an undertone of, "you really ought not to think of relations with me as there is a zero percent chance that sort of thing will come to pass," which I guess presupposes that the person being dismissed was already on the sex-with-me train.

But I don't sense that level of involvement from other people when they act out towards me. For example: the 50-year-old suit who bodily pushes in front of me to get in or out of the train doesn't seem to be doing so to remind me that I don't have a chance of having sex with him; it doesn't seem that well thought out. He's pushing in front of me because it doesn't occur to him that it would be far more polite to let me go first - in fact, if he were smart, he would let me go first and say something like, "after you," so that I would reflect on him later as someone with whom sex would not be horrific.

Yet I do note that a number of these people, both men and women, are married, which presumes that, at some point, they wanted to be sexually attractive to someone. I find it acutely sad that, once paired up, this no longer mattered; at the same time it makes me wonder why they would spend so much on handbags and sunglasses.