That's why people run off with three year old girlfriends. Women have it demarcated biologically. They freak out. They have a hot flash. They lose their biological raison.
Men just have problems getting it up.
I was reading Larry Kramer's book Faggots, about old men in bars getting rejected dozens of times, and then they would find some other quite older guy. It would take him thirty minutes to get an erection and thirty seconds to come. Richard Tull is battling against the cosmos as well as his own insignificance. There's a sense that you're just a speck or a dot in the infinite void. Of course all his energies become malevolent because he's filled with envy.