Love / What does my Polish work colleague's behaviour mean? [12]

I'm working from several months with this polish guy, recently he started to play jokes, to wind me up and behave childish... It does really annoy me, moreover I notice that he behaves kindly and respectfully with every lady apart from me. It seems he has some right for deal with me like with his little sister. At the beginning i thought we could become friends, but now work with him is very unconfortable.

I'm conscious that could be just the person and nothing to do with the nationality, however I would some tips for deal with the whole situation. Thank you very much and please excuse my mistakes as english is not my first language.

Love / Not-married couple with a daughter in Poland....how does it works if they split up? [4]

He is working, she's not. They have a daughter 8 years old. Is he supposed to give money for the daughter and for his ex until the daughter turns 18? Or until the ex find a job? Are there some benefits for single parents in Poland?