@Gababa88 sorry I haven't read this whole thread. I think Mat is about right about the position. A lecturer position will likely be on a fixed-term contract. Often universities here hire Lecturers on a part-time basis, which would not be good for you as you need to be sponsored for a visa (right?), but there are full-time Lecturer positions, too. Lecturers generally do the bulk of the teaching work and it is not a tenured track position, but once you got your foot in the door with a particular department, you would be able to keep your eyes out for better, more senior positions to move up (like a tenured track position or a Research Assistant Professor position).
I think if you're working in a university environment, you'll have good chances to meet a variety of like-minded people, so socially it can be very good for you on the whole. I have found university departments, though, to be a little cold and antisocial. Very professional and down-to-business, not getting lunch together, etc. But you can change this, too, and this was just my experience and not always the case! The bureaucracy churning the wheels of the academic institutions here can be an absolute nightmare at times, so don't expect to get questions answered clearly, but things will still chug along regardless. This problem can sometimes be down to a language barrier (for me), so not sure if someone has some ability with Mandarin would have fewer problems.
As an expat, not-single woman, I have found it easier to get out and socialize in Hong Kong compared to other cities, because there is a population of several hundred thousand in this boat. No matter what stereotypes are true or not, there are plenty of opportunities to do different things here. Yes, there are still some old-fashioned ideas about male roles, both in the workplace and in personal situations, and I've been surprised how commonly people still refer to things like: "When the housewife goes shopping, she can... ". I think you'll encounter that, too, in your profession, like others have mentioned.
It's a crowded place, though. Must have a tolerance for crowds and lack of spacious areas, but if you have access to a family condo in Stanley it sounds like you're off to a good start, heh...