Thank all of you for your advices. Yes, my wife went a couple of times to my home country and stayed with me and my family, parents, cousins, siblings, etc, and she knew how my children behave. That is why I am surprised she took this decition before talking to me about this matter. I am now waiting for the PR Cards to arrive at her house, and wait for her to send them to me. She has told me that as soon she gets the cards she will send them to me.
But she is repeating me that the main reason she wants a divorce is because my children! I dont know whats happening to her. The couple of weeks we stayed at her place, yes my children argued with her a couple of times the first week, the next ones they didnt have any problem.
Also we talked about living in a near future without my children, they were gonna get a place for themselves. But give me a break, a new country, new language, mixed feelings like feeling a little homesick etc, this was new for everyone of us. Also she doesnt have children, and most of the time she has lived by herself. We planned a lot of things in our marriage to do in a near future.
Thats why I want to return to Canada, to talk to her and continue our marriage, because I love her.