It's not too late to find a civilised boyfriend.

Wait... Please tell me this isn't the same one who checks out girls on dating sites in your presence.

In answer to your question: I have developed a complete disregard for traffic rules when walking or cycling. But I haven't "gone native" in regards to personal dignity or public hygiene. Does your bf stick his finger in his nose in public too?

I just dont give a shit about anyone any more,apart from the people that matter most to me.

None. I did come pre-loaded with some bad habits, so no need to pick up new ones. Tragically my Scandinavian bad habits does not just magically appear like normal behavior in China. 

Happy to say, no spitting, no heaving to clearing the chest, no finger up the nose and no littering. I am aware though that I do tend to walk more on the road than on the sidewalk, mainly because the sidewalks are to often used as car parks,  for vehicles of one kind or another, and  or extended shop fronts. Oh and no more queuing, no more holding the door open for ungrateful shits who can't acknowledge your moment of kindness. And if you push me whilst on the metro, you'll dam well get pushed back, and hard. Not my usual life ways, however when in Rome..but no shitting on the road.

I can jump a line with the best of them, and push back as hard, with complete disregard whether its women, men or old people.

I cross a street without even looking at traffic, they will have to stop, wouldn't they?

And I can hit a drain from quite a few meters away spitting, although I haven't mastered the snot accumulation process yet

Well, this National Day Holiday, me, my wife and some local foreigners went on a camping trip... we ended up having to board different cars due to lack of tickets. 

Anyway, our seats were at the back of this one particular car full of standing people. And it was pretty packed.. I was like, "move... move..." but they wouldn't. My wife was shouting at them to move. So I turn to her and she says, "You can't be polite, you will have to push them out of the way." I am 6 foot, 220 pounds and I work out... so this was  a green light for me to get some satisfaction. 

So I bowled over about 8-10 people relentlessly so we could get to our seats (that we paid for). A lot of them were pissed off (so was I for their obvious indifference to making way) but who cares... it felt great and much easier than I suspected it would be... I think this will turn in to a habit because of how fun damn fun it was.

Others... I don't really obey ALL traffic rules at all times but I am safe. I still won't spit, cut lines, cut people off, talk loudly on mobile phones... or be a totally rude asshole. I won't let these little people get to me. 

If you didn't pay for a seat, then move for the people who did, damn it. 

If jaywalking on the street counted as sort of chinese bad habit...then yeah sometimes.

  I picked up a habit off a nun in Shanghai for a few hundred; it was leather with chains, buckles and a picture of a skull on the back smoking a pipe. That was pretty bad. Jam on.

I sometimes have people killed by the triads now but apart from that not really.