A hot looking woman may have managed to keep herself “lonely” but it will not be because of a lack of huge numbers of men, that want to date her and be in her company.
A “hot looking woman”, as you so crassly describe, is your perception. She may very well be someone unconcerned with being “hot”.
When these eager suitors discover she has a brain, and may even be smarter then they are, interest drops abruptly.