How many people of the opposite sex of around your age do you actually know, OP?
Did you go to a girls' school and then into a mainly female occupation and just go out in all women groups to noisy clubs or restaurants?
Or did you have a mixed sex education, work in a 50/50 m/f environment, have plenty of male friends but just don't fancy any of them ?
Why ask - well, most people still meet their partner through school/uni/work/friend groups. If these are 95% female and 5% gay/married/25 years older, then the answer is MEET MORE PEOPLE - volunteer at parkrun, join the Rotarians/Lions, join in any sport that you can, turn up to random shit on meetup.com. Concentrate on simply widening your social circle and making sure it has marriageable men there in reasonable numbers.
If you genuinely do know men and never feel stirrings then I guess have a think about why. Are you just unlucky and they genuinely are all, to a man, dull or smelly, or, is there something in your childhood and family background that might be worth a closer look?
I do simultaneously think that a person has got to be capable of being happy on their own, ideally, but also, that it's bloody useful having a loving partner. (I have a friend who had a major health downturn this year and things would have been SO much easier for her if she'd had a partner to support her). So I don't think you're wrong to want to find someone!