qt, I acted the same way with my wife. Sometimes I raised my voice and argued with her, and as an Italian, I think it's perfectly normal. In Italy most couples argue loudly and very few people get divorced. As long as you don't hit your wife and I believe you that you never will, you are perfectly fine acting this way. It's your wife who is giving up, not you, she is the one who filed for divorce. She is the bad one, you are the good one. You want your family to be together, she doesn't, you are the one that the children are going to respect someday, not her, no matter all the lies that she might tell them about you.
Thanks, I've known some italian guys and I know what you are saying I agree it is her divorce, but I wouldn't say anyone is 'good' or 'bad'.