Imagine you're lost at sea.
Perfectly fine, but the wife doesn't know that.
How long till she accepts that you're dead.
Then how long till she replaces you?
So the number in your head is that your wife will be remarried within 4 years, but you won't be home for 70... Do you really have to wait four years till you start screwing around on the person who believes that they are allowed to legally screw around on your ghost?
Beisdes if you're able to think fourthdimensionally, you can start ignoring your vows immediately because there is no force in the universe which will intervene from she signing up to a speed dating event at your local come the 1500 day mark.
Or do you mean that Neelix is gross?