Just because it is in print, doesn’t mean that it is true. Just look at Enya’s 2004 The International Who’s Who entry. Here’s she is married!
This has really nothing to do with Enya, but when you are a public figure who you are married to is of some interest. When the serious publication The International Who’s Who – which has been in publication since 1935 – claimed that she in 2002 married a Spanish man called Sergio Casado.
Enya’s comment to the matter is (accodring to Enya.tk):
But who is Sergio Casado? In 2004 he published an Enya biography in Spanish (which, by the way, is there only full format Enya biography available (although there are a 1989 English biography available, or the more recent Enya 352 Success Facts)).
On his blog Casado wrote (translated from Spanish):
To this day, Enya has not been married – although there are 2004 editions of The International Who’s Who that claim otherwise…