Why do some men feel relief or improvement in their quality of life after a divorce, even if it's a difficult process?

Why do some people in the working class find humor in jokes about wealth and opulence, like the Cheesecake Factory comparison?
What are some unexpected lessons or skills people learn from being homeless that might lead to moments of happiness?
My son was killed in a robbery yesterday, and my wife hasn't left bed since it happened. I'm starting to feel like she's just using his death as an excuse to ignore me. Should I just leave her?