This is like me asking why the heck do I see older girls checking me out and what have you. I am like Eurasian I may sleep with them but I highly doubt I would have a relationship with them. The only way I could see my self in a relationship with an older girl I was physically attractive to was that if I was her "pet" so to speak. Where she would basically spoil me and what have you. And even then I may think about it.
umm wondering when i get old, i wouldn't be looking at younger girls for having a long term fullfilling relationship. unless they appreared older, wiser, mature etc. i would be looking at them as sex objects. maybe that is how they perceive you.
..the woods would be very silent if no birds sang except the best ..
-- Henry Van Dyke