My wife died very suddenly 14 years ago this week. She was only 58 and my four children were stll quite young. I made a ecsion thta if my children did not have a mother at least they would always have a home. Since then they have all moved on .I changed jobs and have been retired for 7 years. I have never sought another partner it would seem to be a bit like a betrayal and I am a very self contained domesticated person. But I make sure I have lots of friends. I find if I stay at home on my own too long I get depressed. But I set myself projects and get on with them and look after a few people.
Its not the same, but its a good life and I dream about my wife frequently