We can’t judge any specific case, true. However, the hypergamic culture exists and many men were victims of it and have chosen to withdrawal into their interests as a result.
Quite often, he’s not getting upset at being rejected. He’s upset because he was abused in the process of getting rejected.
You’re likely from an older culture and aren’t as aware of the realities of the modern culture.
I’m very much aware of what’s happening today. As I said, all my sons are in their 20s.