i think if the guy in his 40 is still single (never been married, common-in law or never had at least long-term relationships), there IS something wrong with the guy... sorry, eh? I can’t believe that during all these years you have never met the girl who you fell in love with and who loved you in return… and if you haven't, sorry, something wrong with your HEART, man!
there are plenty of women around... you say, “many modern women to be inherently self-centered, unreliable and with extremely high expectations of men”.. for me it looks like you are the one who has too high expectations of women… and you sound selfish as well.…

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“You become responsible forever for what you have tamed”. Antoine de Saint-Exupéry