It's true.
When you begin Uni life, your circle of hi and bye friends are
going to increase, while close, intimate friendship is going to
become a rarity.
For those people that you get along really well with, you better
cherish them.
I think since matriculation, I can count the number of true,
like-minded kakis on less than two hands. The rest are just
butterflies that flit in and out every semester.
Seriously, perhaps you should consider joining a club or society,
there's no harm trying.