It's just reality. It's also a reality that some men fall for the gold-digger type. Some men do the same thing....take advantage of mostly older, lonely women.
However, women do this more often to men, than the other way around. Stella McCartney tried to warn her Dad, but he was "In Love".
In any event, it's sad that some men don't see them coming.
The libido oftentimes has the added effect of shredding any semblance of rational thought. It's occurred with me on more than one occasion....