Whilst it is a bit of blanket statement and generalisation it does appear to be true that men go for physical*, they want a lot more than that if they are thinking of settling down. Very beautiful, attractive girls and women, even intelligent and capable ones, seem to have their hearts broken more often than less obviously attractive girls. Men sometimes feel a bit intimidated, or want to 'bring them down', or don't trust them. I've seen a lot of that, it's sad. Eventually they find someone who is right, who are confident in themselves, but it's a sad business on the way.
*women also have to find someone physically pleasing, they don't have to have 'film star' looks but if you plan to have a relationship, you need some physical attraction.