[Spoilers] Sir Harry Pearce

[Silktie]

I think the fact that Harry cries when he sees Catherine again is a definite indication that he is no longer the same man he was when the kids were small and the marriage was falling apart. He is definitely remorseful about being a poor father. I'm not sure about the chronology of events, but the horrible death of his friend Bill described in season 1 must have had a profound effect on Harry. Perhaps that's when he subconsciously decided that the job was so important - a tribute to the sacrifice made by his friend? Maybe it also contributed to Harry beginning to withdraw from others that were close to him, i.e. his wife and kids, because he began to understand the danger his job held for the people close to him. Then when Ruth came into his life, she slowly began to break down the barriers he had built up to keep people at a distance, leading to his emotions coming to the surface when Catherine became involved in an operation, and later Harry's attempts to start a relationship with Ruth.