But the thing is, she could be a total ass and walk out on her husband...because of something ~she~ changed her mind about, and never find another decent relationship again. Or maybe she does and the guy is sterile. Or maybe by the time she meets him, she is. I just don't think (in an ideal world) ppl should bust up marriages like that willy nilly. No one is guaranteed children. And when you marry someone 45 years old who doesn't have any, I'm guessing you would have discussed that issue at length and made your peace with the othr person's wishes before you say "I do."