You may be receiving a new questionaire from CRA regarding your true nature of your relationship. CRA wants to know what is happening in your bedroom and they have a good reason.
Here is why? There are all kinds of tax advantages to be considered spouses. Some disadvantages as well however. But in many cases, to be considered spouses, especially with the new “family tax credits” and at retirement with the pension splitting advantages, it may mean several hundred or thousands of tax dollars saved. CRA want to make sure that you are indeed common law spouses, not just roommates.
Here a link to an article written this week about this.