The conjugal partnership is only available for couples that CANT get married in their present situation. For example, gay/lesbian/trans couples or A couple were one person is Chilean and has been married and couldn't get a divorce b/c the Chile Government just recently allowed Divorce and the back log for divorces is..loooong. I am sure there are more examples, but the point is... Conjugal Partnership is for couples that Cannot get married, Not that they CHOOSE not to get married.