<human>: Give me the gist of the text in a nutshell

I will keep this short.

I moved from Canada to China for work. Two days after arriving I meet the secretary (W) who, about an hour or so later, with a cold face tells everyone that she does not like me. I thought she was joking. Two months later and things have gotten increasingly colder in the office between her and I. She never says hello or goodbye to me, which makes things really awkward when I say it to her- I am left standing there as if I were talking to a ghost or the wall. I have asked my boss, who has observed our - well, W's - interaction with me and just laughs it off. Today, however, I told my boss, who had been absent for a few days, that W has been increasingly rude and hostile toward me. My boss started off smiling but I cut her off and let her know I was being serious and W's attitude is getting to me even though I have done absolutely nothing to her.

Anyway, I want to write her an e-mail regardless of what my boss does or says to her but I do not know what to say. I have never been in a situation like this. What do you say to someone who declares you their enemy and treats you like crap in a professional working environment two days after meeting you and almost no other previous interaction?

In my defense, I genuinely feel that I am completely innocent in this situation. I have asked everyone else that I work with, who have been present during W' and I's interaction 100% of the time if I am at fault and they all keep making excuses for her.
<bot>: Moved to new country for new job. Co-worker declares that she does not like me and treats me like crap. What to say in e-mail?