Well I have recently been reading the Prince consort's 2 biograhies.
Evidently he was often invited to dinner parties in London. Being af low diplomat of some sort.
He went to the dinner party and was seated besides CP M. He found her to be not excentric but a woman of her own mind and with at large scale of interest. Already at this opoint she was apparently a intellectuel.
It wasn't love at first sight. M has said that she didn't think anything of him at the time.
Eventually they met again at a wedding. At the same dinnerparty 2 other guest had found such an interest in each other that it eventually resulted in a wedding party in Scotland.
Henry was invited as well as M.
Apparently Henry and M was seated besides each other in the plane back from Scotland if my memory serves me right.
At this point Henry was somewhat smitten.
Henry and a friend wanted to show some sights to M and another lady. Henry suggested that they shoul make a day and a night om the town. At this point M started to be interested.