Sorry to hear this about Paul and Heather.
From listening to his last few albums, I think Paul really misses Linda.
As for prenups, and Paul not signing one, I have no problem with that.
Marriage is suppose to be about love and trust.
If you feel that is not there, and you need a prenup, then you probably shouldn't be getting married.
It's not a business transaction. It's about a committed relationship to each other.
And after all, Paul knows that "money can't buy me love".