Prince William “doesn’t let Kate feel isolated” amid her cancer treatment as he puts his family first. The Prince of Wales has taken a break from his duties over the Easter holidays to spend time with his wife and their three children. During Kate’s video message announcing her cancer diagnosis, she said that her husband was a “great source of comfort and reassurance.” A source has detailed how the Prince and the Princess of Wales will be supporting each other during this difficult time. The source said: “He is a very reliable, strong person. She doesn’t feel isolated in this because of Willia…