Dow interview questions

I received the interview invitation and scheduled a on-line interview with HR. In the interview, I was asked why I applied for this position. After I explained the reasons, the HR challenged me in a very aggressive way. She challenged me on why I wanted to work in different fields, why not focusing on my current filed. I tried to explain, but she refused to listen and closed the interview. The interview was scheduled 45 mins, but it ended in 15 mins. Most of the interview, the HR was challenging but not listening. It is the worst interview I have ever had in my working life. I can not imagine why that HR took the interview in that way.