at a certain point in life, your social circle not only doesn't widen much, it starts to shrink.  You don't see your teammates 3 times a week, or your hallmates 5/6 days a week.  Slowly you start working late, and end up going home at 8, 9 plus a few times a week. And it's going home straight afterward.  No parties, no drinking sessions, or chilling out with friends.  There are, but the frequency kinds of gets less unless you make an effort to keep it up.

So how do you manage it? Get more friends? Or specifically get a bf/gf so that he/she will take up all your time.  But that doesn't sound very right at all.  firstly a bf/gf is not just to take up your time, although in most cases they do.  Social landscape changes when you grow up, and i guess it's learning about how to manage them as you get along.  But with my inept social skills (i won't say lack of, because i have nonetheless 2 frens), things can get rather difficult and sian...