Yah, agree with most posters on here, it will take roughly 6-12 months. For me, I got my home fix every year or so with a week to fortnight annual trip. But then as you settle into a routine, meet new people, then before you know it, Hong Kong becomes your home.
For me now, I have lost contacts with all but a few close friends in the UK, and that contact is like limited to Facebook
You just need to get in with the local CBCs here, loads of them hang out in the karaoke bars in CWB. I suggest you FB your fellow maples back home and see if there is anyone in Hong Kong they know that you can hang around with. Then once you get into that scene, you get pure "playtime" and you will think how boring it is back home.
It's like me now, I haven't been home like in 3 years and don't particularly want to. It's like everything closes after working hours, and then you got the yob culture in the UK, and because I smoke, nowhere to do that. Here, there are loads of things to do, places like Thailand and Japan are like 3-6 hours away, you have really good food and massages in Shenzhen, and of course I am ...well, let's just say enjoying my social life in CWB and LKF