i found this - it's not much but it may help
Conjugal Partner
A conjugal partner is a foreign national residing outside Canada who is in a conjugal relationship with a sponsor for at least one year, but could not live with the sponsor as a couple. This term applies to both heterosexual and homosexual couples. This category was established for partners of sponsors who normally would present an application as spouse or common-law partner but cannot due to circumstances beyond their control (e. g., immigration barrier, religious reasons or sexual orientation). Thus, they could not live together for a period of at least one year.
In most cases, the foreign partner is also not able to legally marry their sponsor and qualify as a spouse. In all other respects, the couple is similar to a common-law couple or a married couple, meaning they have been in a bona fide (genuine) conjugal relationship for a period of at least one year.
However, a significant degree of attachment and mutually interdependence between both partners must be demonstrated. They must also provide proof of the obstacles or restrictions that prevent cohabitation or marriage.
Conjugal Partner
A conjugal partner is a foreign national residing outside Canada who is in a conjugal relationship with a sponsor for at least one year, but could not live with the sponsor as a couple. This term applies to both heterosexual and homosexual couples. This category was established for partners of sponsors who normally would present an application as spouse or common-law partner but cannot due to circumstances beyond their control (e. g., immigration barrier, religious reasons or sexual orientation). Thus, they could not live together for a period of at least one year.
In most cases, the foreign partner is also not able to legally marry their sponsor and qualify as a spouse. In all other respects, the couple is similar to a common-law couple or a married couple, meaning they have been in a bona fide (genuine) conjugal relationship for a period of at least one year.
However, a significant degree of attachment and mutually interdependence between both partners must be demonstrated. They must also provide proof of the obstacles or restrictions that prevent cohabitation or marriage.