Teacher stalking

Okay. this is pretty WEIRD. I got an fb message just now from an unknown person, then found out it was my TEACHER. OMG!!!!

He said dont be too westerny using F and B word. Your english is good n might be too good. like wtf. == I just used it one time on FB and that was coz I was pissed. Why is it such a bif issue? Also I got some comments from my aunt == also saying the same thing. Watch my language. Hey it's my life. D: I can do whatever I want. Besides, it's not like I'm using it in every sentence. Only when necessary. dang ppl. what ever happened to personal space and privacy? I have rights too. Okay I accept your advice. Now get off my shoulders. :(