Until Whenever
[Wedding] vows like "For as long as we continue to love each other," "For as long as our love shall last" and "Until our time together is over" are increasingly replacing the traditional to-the-grave vow – a switch that some call realistic and others call a recipe for failure.
Link.
We could really get into this. Here are some possible replacements for that out-dated "death do us part":
"Until I don't feel fulfilled any more."
"Until I get the itch."
"Until I don't find you attractive any more."
"Until some really good tail comes along."
"Until I wake up one morning and decide I'd rather lop off my privates than spend another freakin' day with you."
"Until this bender wears off."
"Until I find out your father doesn't have as much money as I thought."