I’m not sure it’s that simple.
In the social circles he and W mixed in, yes of course there are many attractive women.
The issue is that many of them are not only wealthy themselves but also very aware of what dating a member of the RF entails.
If you mix in those circles you also have a dating pool of men who are by far more wealthy, that don’t come with all the baggage of a royal entanglement and who (trying to be polite) offer more both aesthetically and intellectually as a partner.
I may be wrong (or rather the gossip at the time may have been way off point) but when W split with C before being engaged it was reported that W expected a queue of women to be falling at his feet only to find the pickings pretty slim to non existent.
How true it is I don’t know but it was suggested he had his eye on Isabella Calthorpe (Cressida Bonas’s half sister) but she wasn’t interested in the slightest and went on to marry Sam Branson (Richard Branson’s son). The end result being W waking up to the fact that he’d struck gold already with C and nearly blown it.
So I can kind of see why H was enraptured by M. She is very beautiful and more importantly seemed to be unbothered (or possibly unaware or otherwise motivated) in the respect of all the reasons why so many other women he knew were not falling to his feet.
I appreciate there are probably many, many women who would (shall we say) overlook some of H’s characteristics and see him as a catch but the problem is most of them wouldn’t be in a position to ever meet him.