I have a close male friend in their mid-thirties that has struggled dating since I've known him (~10 years). He is attractive, dresses well, goes to the gym, eats well, has a few hobbies, and isn't emotionally stunted nor suffer from any arrested development issues. My girlfriend thinks he might be cursed since we don't have any single friends to match-make him with.

He moved to a different city a few years ago and reported more hookups, but serious dating is just as bad. I'm starting to notice him becoming tired of it all, even though he hides it quite well.

Given it's not realistic to keep moving to different cities as it's financially and socially expensive to do so. What should I suggest?