From what you've said in your first post, it sounds like a dating relationship to me too. Could you say it is already "marriage-like" and if so, what proof do you have that it is?
Read here for definitions, types of evidence, guidelines, etc:
http://www.cic.gc.ca/english/resources/manuals/op/op02-eng.pdfThere have been cases of successful conjugal partner apps for visa exempt couples. I happen to be one of them. I'm from the US. Another more recent applicant, Alberto70, I think he's from Italy just got rejected. In his (I am assuming male based only one the username) post he says...
"The conjugal partner application has been rejected due to economical reasons, that neither is "willing" to leave a current job to join the other, (the VO agreed that the relationship is genuine). In other words, since there are no bureaucratic barriers barring us from living together (which in our opinion is not true, as we both have different citizenships and living together for more than one year is legally difficult), the application was rejected."
If you search under members for his name you can get more details about his case.