Although I am at work and I am rush to leave I still want to write something to answer you.
It is conflict from your title since you said you dont look for friends, so what do you mean by getting know someone to talk, discover the culture, go to do activities together... how do you define those people?
Then it seems you feel uncomfortable about living the life in Singapore having parties, beach trip with "friends" you know here... It is not bad! You dont have to resit it or try to escape. What I mean here is you decide what you want to do in life, you can still go to party then next day go to Church or museum, you can dance on Sat night and Sunday go for swimming or kiteboarding...
And I agree with Mike about people who you meet, hangout with, having meal with, drink with, or simple you talk with few times are friends! Just how close you are in touch with them.
So...I dont understand you either with this complicated theory
