Cinders that's exactly the sort of thing my x would do and has done similar. But after all these years if he had regrets he will take them to his grave, yes they were good,nice,decent guys they just found new loves and lives. Maybe they were brave or cowards? Funny I said a similar thing to a male friend who has been in a loveless marriage for over 30 years and he confides in me. He stayed for his daughter and now he says he is just too comfortable and too scared to leave ,he sometimes runs my x down and says how could he etc..but Strangly I stick up for him and say well it must have taken a huge amount of courage. Now I can see that, still will never understand how or why he couldn't have tried to make it work or just tell me he was unhappy, but guess thats hindsight. Take care. All will be well one day.