The criteria generally speaking for a marriage- like relationship are as follows, as recently laid out in McFarlane v. Goodburn Estate 2014 BCSC 1449:
The question of whether a couple is to be regarded as having had a marriage-like relationship can be answered having regard to objective and subjective criteria.
The nature of the objective test and its limitations were described by Justice Cory in M. v. H.  2 S.C.R. 3, at para. 59: