Right now, you and your family are going through a very traumatic time and experiencing a wave of emotions. The closeness that was there has now been shattered by the reality of living with cancer.
Your wife is clearly feeling the physical and psychological effects of the treatment and it sounds like she is having a very difficult time. It’s possible that she is becoming distant in order to shield your children from witnessing the effects that she is enduring and maybe she wants to protect them from that.
For now, it is important that you continue to communicate with your children and ensure them that they are loved by you and your wife. They also need to know that their mother’s anger and distance is a result of the treatment and not based on anything personal.
I would suggest getting in touch with Cork ARC Cancer Support House or Cork Cancer Care Centre, both of which provide support to people with cancer and their families. It will also allow you and your children to meet and share with other families who are having similar experiences. For now, you are doing all you can at this very difficult time and I sincerely wish you the very best.